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Finding the Fourth Proportional to 5,059.16, 7,588.74 and 1,979

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Solution

The fourth proportional to 5,059.16, 7,588.74 and 1,979 is: 2,968.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,059.16 : 7,588.74 = 1,979 : x
  2. Step 2: Convert to fraction form
    5,059.16/7,588.74 = 1,979/x
  3. Step 3: Cross multiply
    5,059.16x = 7,588.74 × 1,979
  4. Step 4: Simplify right side
    5,059.16x = 15,018,116.46
  5. Step 5: Solve for x
    x = 15,018,116.46/5,059.16
  6. Step 6: Final answer
    x = 2,968.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.