Home / 3,720.22-5,581.26-1,123.16

Finding the Fourth Proportional to 3,720.22, 5,581.26 and 1,123.16

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Solution

The fourth proportional to 3,720.22, 5,581.26 and 1,123.16 is: 1,685.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.22 : 5,581.26 = 1,123.16 : x
  2. Step 2: Convert to fraction form
    3,720.22/5,581.26 = 1,123.16/x
  3. Step 3: Cross multiply
    3,720.22x = 5,581.26 × 1,123.16
  4. Step 4: Simplify right side
    3,720.22x = 6,268,647.98
  5. Step 5: Solve for x
    x = 6,268,647.98/3,720.22
  6. Step 6: Final answer
    x = 1,685.02

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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.