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Finding the Fourth Proportional to 3,888.70, 5,833.92 and 1,423.47

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Solution

The fourth proportional to 3,888.70, 5,833.92 and 1,423.47 is: 2,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,888.70 : 5,833.92 = 1,423.47 : x
  2. Step 2: Convert to fraction form
    3,888.70/5,833.92 = 1,423.47/x
  3. Step 3: Cross multiply
    3,888.70x = 5,833.92 × 1,423.47
  4. Step 4: Simplify right side
    3,888.70x = 8,304,373.82
  5. Step 5: Solve for x
    x = 8,304,373.82/3,888.70
  6. Step 6: Final answer
    x = 2,135.51

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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.