Home / 3,724.83-5,139.99-2,152.89

Finding the Fourth Proportional to 3,724.83, 5,139.99 and 2,152.89

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Solution

The fourth proportional to 3,724.83, 5,139.99 and 2,152.89 is: 2,970.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.83 : 5,139.99 = 2,152.89 : x
  2. Step 2: Convert to fraction form
    3,724.83/5,139.99 = 2,152.89/x
  3. Step 3: Cross multiply
    3,724.83x = 5,139.99 × 2,152.89
  4. Step 4: Simplify right side
    3,724.83x = 11,065,833.07
  5. Step 5: Solve for x
    x = 11,065,833.07/3,724.83
  6. Step 6: Final answer
    x = 2,970.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.