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Finding the Fourth Proportional to 1,776.71, 2,665.28 and 953.85

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Solution

The fourth proportional to 1,776.71, 2,665.28 and 953.85 is: 1,430.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.71 : 2,665.28 = 953.85 : x
  2. Step 2: Convert to fraction form
    1,776.71/2,665.28 = 953.85/x
  3. Step 3: Cross multiply
    1,776.71x = 2,665.28 × 953.85
  4. Step 4: Simplify right side
    1,776.71x = 2,542,272.56
  5. Step 5: Solve for x
    x = 2,542,272.56/1,776.71
  6. Step 6: Final answer
    x = 1,430.89

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.