Home / 3,720.05-5,580.08-1,254.88

Finding the Fourth Proportional to 3,720.05, 5,580.08 and 1,254.88

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Solution

The fourth proportional to 3,720.05, 5,580.08 and 1,254.88 is: 1,882.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.05 : 5,580.08 = 1,254.88 : x
  2. Step 2: Convert to fraction form
    3,720.05/5,580.08 = 1,254.88/x
  3. Step 3: Cross multiply
    3,720.05x = 5,580.08 × 1,254.88
  4. Step 4: Simplify right side
    3,720.05x = 7,002,315.27
  5. Step 5: Solve for x
    x = 7,002,315.27/3,720.05
  6. Step 6: Final answer
    x = 1,882.32

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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.