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Finding the Fourth Proportional to 1,062.42, 1,592.19 and 513.51

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Solution

The fourth proportional to 1,062.42, 1,592.19 and 513.51 is: 769.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,062.42 : 1,592.19 = 513.51 : x
  2. Step 2: Convert to fraction form
    1,062.42/1,592.19 = 513.51/x
  3. Step 3: Cross multiply
    1,062.42x = 1,592.19 × 513.51
  4. Step 4: Simplify right side
    1,062.42x = 817,605.49
  5. Step 5: Solve for x
    x = 817,605.49/1,062.42
  6. Step 6: Final answer
    x = 769.57

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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.