Home / 3,724.28-5,139.53-2,045.63

Finding the Fourth Proportional to 3,724.28, 5,139.53 and 2,045.63

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Solution

The fourth proportional to 3,724.28, 5,139.53 and 2,045.63 is: 2,822.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.28 : 5,139.53 = 2,045.63 : x
  2. Step 2: Convert to fraction form
    3,724.28/5,139.53 = 2,045.63/x
  3. Step 3: Cross multiply
    3,724.28x = 5,139.53 × 2,045.63
  4. Step 4: Simplify right side
    3,724.28x = 10,513,566.84
  5. Step 5: Solve for x
    x = 10,513,566.84/3,724.28
  6. Step 6: Final answer
    x = 2,822.98

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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.