Home / 7,525.76-11,289.34-1,979.13

Finding the Fourth Proportional to 7,525.76, 11,289.34 and 1,979.13

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Solution

The fourth proportional to 7,525.76, 11,289.34 and 1,979.13 is: 2,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,525.76 : 11,289.34 = 1,979.13 : x
  2. Step 2: Convert to fraction form
    7,525.76/11,289.34 = 1,979.13/x
  3. Step 3: Cross multiply
    7,525.76x = 11,289.34 × 1,979.13
  4. Step 4: Simplify right side
    7,525.76x = 22,343,071.47
  5. Step 5: Solve for x
    x = 22,343,071.47/7,525.76
  6. Step 6: Final answer
    x = 2,968.88

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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.