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Finding the Fourth Proportional to 1,472.50, 2,032.34 and 874.87

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Solution

The fourth proportional to 1,472.50, 2,032.34 and 874.87 is: 1,207.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,472.50 : 2,032.34 = 874.87 : x
  2. Step 2: Convert to fraction form
    1,472.50/2,032.34 = 874.87/x
  3. Step 3: Cross multiply
    1,472.50x = 2,032.34 × 874.87
  4. Step 4: Simplify right side
    1,472.50x = 1,778,039.44
  5. Step 5: Solve for x
    x = 1,778,039.44/1,472.50
  6. Step 6: Final answer
    x = 1,207.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.