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Finding the Fourth Proportional to 534.80, 747.10 and 534.80

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Solution

The fourth proportional to 534.80, 747.10 and 534.80 is: 747.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.80 : 747.10 = 534.80 : x
  2. Step 2: Convert to fraction form
    534.80/747.10 = 534.80/x
  3. Step 3: Cross multiply
    534.80x = 747.10 × 534.80
  4. Step 4: Simplify right side
    534.80x = 399,549.08
  5. Step 5: Solve for x
    x = 399,549.08/534.80
  6. Step 6: Final answer
    x = 747.10

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.