Home / 5,381.19-8,070.87-1,432.51

Finding the Fourth Proportional to 5,381.19, 8,070.87 and 1,432.51

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Solution

The fourth proportional to 5,381.19, 8,070.87 and 1,432.51 is: 2,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.19 : 8,070.87 = 1,432.51 : x
  2. Step 2: Convert to fraction form
    5,381.19/8,070.87 = 1,432.51/x
  3. Step 3: Cross multiply
    5,381.19x = 8,070.87 × 1,432.51
  4. Step 4: Simplify right side
    5,381.19x = 11,561,601.98
  5. Step 5: Solve for x
    x = 11,561,601.98/5,381.19
  6. Step 6: Final answer
    x = 2,148.52

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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.