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Finding the Fourth Proportional to 1,155.87, 1,733.01 and 570.16

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Solution

The fourth proportional to 1,155.87, 1,733.01 and 570.16 is: 854.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155.87 : 1,733.01 = 570.16 : x
  2. Step 2: Convert to fraction form
    1,155.87/1,733.01 = 570.16/x
  3. Step 3: Cross multiply
    1,155.87x = 1,733.01 × 570.16
  4. Step 4: Simplify right side
    1,155.87x = 988,092.98
  5. Step 5: Solve for x
    x = 988,092.98/1,155.87
  6. Step 6: Final answer
    x = 854.85

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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.