Home / 5,381.16-8,071.82-1,432.49

Finding the Fourth Proportional to 5,381.16, 8,071.82 and 1,432.49

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Solution

The fourth proportional to 5,381.16, 8,071.82 and 1,432.49 is: 2,148.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.16 : 8,071.82 = 1,432.49 : x
  2. Step 2: Convert to fraction form
    5,381.16/8,071.82 = 1,432.49/x
  3. Step 3: Cross multiply
    5,381.16x = 8,071.82 × 1,432.49
  4. Step 4: Simplify right side
    5,381.16x = 11,562,801.43
  5. Step 5: Solve for x
    x = 11,562,801.43/5,381.16
  6. Step 6: Final answer
    x = 2,148.76

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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.