Home / 3,655.31-5,484.87-2,339.78

Finding the Fourth Proportional to 3,655.31, 5,484.87 and 2,339.78

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Solution

The fourth proportional to 3,655.31, 5,484.87 and 2,339.78 is: 3,510.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.31 : 5,484.87 = 2,339.78 : x
  2. Step 2: Convert to fraction form
    3,655.31/5,484.87 = 2,339.78/x
  3. Step 3: Cross multiply
    3,655.31x = 5,484.87 × 2,339.78
  4. Step 4: Simplify right side
    3,655.31x = 12,833,361.70
  5. Step 5: Solve for x
    x = 12,833,361.70/3,655.31
  6. Step 6: Final answer
    x = 3,510.89

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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.