Home / 1,325.16-1,986.12-502.88

Finding the Fourth Proportional to 1,325.16, 1,986.12 and 502.88

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Solution

The fourth proportional to 1,325.16, 1,986.12 and 502.88 is: 753.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.16 : 1,986.12 = 502.88 : x
  2. Step 2: Convert to fraction form
    1,325.16/1,986.12 = 502.88/x
  3. Step 3: Cross multiply
    1,325.16x = 1,986.12 × 502.88
  4. Step 4: Simplify right side
    1,325.16x = 998,770.10
  5. Step 5: Solve for x
    x = 998,770.10/1,325.16
  6. Step 6: Final answer
    x = 753.70

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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.