Home / 3,720.60-5,580.90-3,474.58

Finding the Fourth Proportional to 3,720.60, 5,580.90 and 3,474.58

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Solution

The fourth proportional to 3,720.60, 5,580.90 and 3,474.58 is: 5,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.60 : 5,580.90 = 3,474.58 : x
  2. Step 2: Convert to fraction form
    3,720.60/5,580.90 = 3,474.58/x
  3. Step 3: Cross multiply
    3,720.60x = 5,580.90 × 3,474.58
  4. Step 4: Simplify right side
    3,720.60x = 19,391,283.52
  5. Step 5: Solve for x
    x = 19,391,283.52/3,720.60
  6. Step 6: Final answer
    x = 5,211.87

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1.5x scale

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.