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Finding the Fourth Proportional to 2,502.39, 3,753.66 and 858.91

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Solution

The fourth proportional to 2,502.39, 3,753.66 and 858.91 is: 1,288.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,502.39 : 3,753.66 = 858.91 : x
  2. Step 2: Convert to fraction form
    2,502.39/3,753.66 = 858.91/x
  3. Step 3: Cross multiply
    2,502.39x = 3,753.66 × 858.91
  4. Step 4: Simplify right side
    2,502.39x = 3,224,051.82
  5. Step 5: Solve for x
    x = 3,224,051.82/2,502.39
  6. Step 6: Final answer
    x = 1,288.39

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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.