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Finding the Fourth Proportional to 1,754.25, 2,631.65 and 876.82

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Solution

The fourth proportional to 1,754.25, 2,631.65 and 876.82 is: 1,315.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754.25 : 2,631.65 = 876.82 : x
  2. Step 2: Convert to fraction form
    1,754.25/2,631.65 = 876.82/x
  3. Step 3: Cross multiply
    1,754.25x = 2,631.65 × 876.82
  4. Step 4: Simplify right side
    1,754.25x = 2,307,478.97
  5. Step 5: Solve for x
    x = 2,307,478.97/1,754.25
  6. Step 6: Final answer
    x = 1,315.36

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1.5x scale

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.