Home / 1,036.50-1,555.20-517.02

Finding the Fourth Proportional to 1,036.50, 1,555.20 and 517.02

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Solution

The fourth proportional to 1,036.50, 1,555.20 and 517.02 is: 775.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,036.50 : 1,555.20 = 517.02 : x
  2. Step 2: Convert to fraction form
    1,036.50/1,555.20 = 517.02/x
  3. Step 3: Cross multiply
    1,036.50x = 1,555.20 × 517.02
  4. Step 4: Simplify right side
    1,036.50x = 804,069.50
  5. Step 5: Solve for x
    x = 804,069.50/1,036.50
  6. Step 6: Final answer
    x = 775.75

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Double scale
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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.