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Finding the Fourth Proportional to 1,710.82, 2,564.37 and 876.74

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Solution

The fourth proportional to 1,710.82, 2,564.37 and 876.74 is: 1,314.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,710.82 : 2,564.37 = 876.74 : x
  2. Step 2: Convert to fraction form
    1,710.82/2,564.37 = 876.74/x
  3. Step 3: Cross multiply
    1,710.82x = 2,564.37 × 876.74
  4. Step 4: Simplify right side
    1,710.82x = 2,248,285.75
  5. Step 5: Solve for x
    x = 2,248,285.75/1,710.82
  6. Step 6: Final answer
    x = 1,314.16

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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.