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Finding the Fourth Proportional to 1,775.46, 2,663.19 and 476.92

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Solution

The fourth proportional to 1,775.46, 2,663.19 and 476.92 is: 715.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.46 : 2,663.19 = 476.92 : x
  2. Step 2: Convert to fraction form
    1,775.46/2,663.19 = 476.92/x
  3. Step 3: Cross multiply
    1,775.46x = 2,663.19 × 476.92
  4. Step 4: Simplify right side
    1,775.46x = 1,270,128.57
  5. Step 5: Solve for x
    x = 1,270,128.57/1,775.46
  6. Step 6: Final answer
    x = 715.38

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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.