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Finding the Fourth Proportional to 925.10, 1,276.75 and 526.86

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Solution

The fourth proportional to 925.10, 1,276.75 and 526.86 is: 727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.10 : 1,276.75 = 526.86 : x
  2. Step 2: Convert to fraction form
    925.10/1,276.75 = 526.86/x
  3. Step 3: Cross multiply
    925.10x = 1,276.75 × 526.86
  4. Step 4: Simplify right side
    925.10x = 672,669.16
  5. Step 5: Solve for x
    x = 672,669.16/925.10
  6. Step 6: Final answer
    x = 727.13

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.