Home / 3,720.57-5,580.85-1,667.13

Finding the Fourth Proportional to 3,720.57, 5,580.85 and 1,667.13

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Solution

The fourth proportional to 3,720.57, 5,580.85 and 1,667.13 is: 2,500.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.57 : 5,580.85 = 1,667.13 : x
  2. Step 2: Convert to fraction form
    3,720.57/5,580.85 = 1,667.13/x
  3. Step 3: Cross multiply
    3,720.57x = 5,580.85 × 1,667.13
  4. Step 4: Simplify right side
    3,720.57x = 9,304,002.46
  5. Step 5: Solve for x
    x = 9,304,002.46/3,720.57
  6. Step 6: Final answer
    x = 2,500.69

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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.