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Finding the Fourth Proportional to 3,026.98, 4,540.44 and 947.00

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Solution

The fourth proportional to 3,026.98, 4,540.44 and 947.00 is: 1,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,026.98 : 4,540.44 = 947.00 : x
  2. Step 2: Convert to fraction form
    3,026.98/4,540.44 = 947.00/x
  3. Step 3: Cross multiply
    3,026.98x = 4,540.44 × 947.00
  4. Step 4: Simplify right side
    3,026.98x = 4,299,811.58
  5. Step 5: Solve for x
    x = 4,299,811.58/3,026.98
  6. Step 6: Final answer
    x = 1,420.49

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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.