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Finding the Fourth Proportional to 1,035.93, 1,552.84 and 515.13

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Solution

The fourth proportional to 1,035.93, 1,552.84 and 515.13 is: 772.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035.93 : 1,552.84 = 515.13 : x
  2. Step 2: Convert to fraction form
    1,035.93/1,552.84 = 515.13/x
  3. Step 3: Cross multiply
    1,035.93x = 1,552.84 × 515.13
  4. Step 4: Simplify right side
    1,035.93x = 799,914.47
  5. Step 5: Solve for x
    x = 799,914.47/1,035.93
  6. Step 6: Final answer
    x = 772.17

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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.