Home / 4,780.31-7,155.27-3,459.60

Finding the Fourth Proportional to 4,780.31, 7,155.27 and 3,459.60

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Solution

The fourth proportional to 4,780.31, 7,155.27 and 3,459.60 is: 5,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.31 : 7,155.27 = 3,459.60 : x
  2. Step 2: Convert to fraction form
    4,780.31/7,155.27 = 3,459.60/x
  3. Step 3: Cross multiply
    4,780.31x = 7,155.27 × 3,459.60
  4. Step 4: Simplify right side
    4,780.31x = 24,754,372.09
  5. Step 5: Solve for x
    x = 24,754,372.09/4,780.31
  6. Step 6: Final answer
    x = 5,178.41

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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.