Home / 5,531.30-7,631.02-3,643.87

Finding the Fourth Proportional to 5,531.30, 7,631.02 and 3,643.87

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Solution

The fourth proportional to 5,531.30, 7,631.02 and 3,643.87 is: 5,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,531.30 : 7,631.02 = 3,643.87 : x
  2. Step 2: Convert to fraction form
    5,531.30/7,631.02 = 3,643.87/x
  3. Step 3: Cross multiply
    5,531.30x = 7,631.02 × 3,643.87
  4. Step 4: Simplify right side
    5,531.30x = 27,806,453.96
  5. Step 5: Solve for x
    x = 27,806,453.96/5,531.30
  6. Step 6: Final answer
    x = 5,027.11

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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.