Home / 4,019.76-6,029.91-1,387.53

Finding the Fourth Proportional to 4,019.76, 6,029.91 and 1,387.53

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Solution

The fourth proportional to 4,019.76, 6,029.91 and 1,387.53 is: 2,081.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,019.76 : 6,029.91 = 1,387.53 : x
  2. Step 2: Convert to fraction form
    4,019.76/6,029.91 = 1,387.53/x
  3. Step 3: Cross multiply
    4,019.76x = 6,029.91 × 1,387.53
  4. Step 4: Simplify right side
    4,019.76x = 8,366,681.02
  5. Step 5: Solve for x
    x = 8,366,681.02/4,019.76
  6. Step 6: Final answer
    x = 2,081.39

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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.