Home / 5,619.71-7,753.47-3,261.40

Finding the Fourth Proportional to 5,619.71, 7,753.47 and 3,261.40

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Solution

The fourth proportional to 5,619.71, 7,753.47 and 3,261.40 is: 4,499.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.71 : 7,753.47 = 3,261.40 : x
  2. Step 2: Convert to fraction form
    5,619.71/7,753.47 = 3,261.40/x
  3. Step 3: Cross multiply
    5,619.71x = 7,753.47 × 3,261.40
  4. Step 4: Simplify right side
    5,619.71x = 25,287,167.06
  5. Step 5: Solve for x
    x = 25,287,167.06/5,619.71
  6. Step 6: Final answer
    x = 4,499.73

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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.