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Finding the Fourth Proportional to 1,160.46, 1,600.50 and 1,020.28

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Solution

The fourth proportional to 1,160.46, 1,600.50 and 1,020.28 is: 1,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.46 : 1,600.50 = 1,020.28 : x
  2. Step 2: Convert to fraction form
    1,160.46/1,600.50 = 1,020.28/x
  3. Step 3: Cross multiply
    1,160.46x = 1,600.50 × 1,020.28
  4. Step 4: Simplify right side
    1,160.46x = 1,632,950.14
  5. Step 5: Solve for x
    x = 1,632,950.14/1,160.46
  6. Step 6: Final answer
    x = 1,407.16

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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.