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Finding the Fourth Proportional to 1,143.57, 1,715 and 595.46

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Solution

The fourth proportional to 1,143.57, 1,715 and 595.46 is: 893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143.57 : 1,715 = 595.46 : x
  2. Step 2: Convert to fraction form
    1,143.57/1,715 = 595.46/x
  3. Step 3: Cross multiply
    1,143.57x = 1,715 × 595.46
  4. Step 4: Simplify right side
    1,143.57x = 1,021,205.33
  5. Step 5: Solve for x
    x = 1,021,205.33/1,143.57
  6. Step 6: Final answer
    x = 893.00

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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.