Home / 3,707.20-5,111.40-3,182.32

Finding the Fourth Proportional to 3,707.20, 5,111.40 and 3,182.32

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Solution

The fourth proportional to 3,707.20, 5,111.40 and 3,182.32 is: 4,387.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.20 : 5,111.40 = 3,182.32 : x
  2. Step 2: Convert to fraction form
    3,707.20/5,111.40 = 3,182.32/x
  3. Step 3: Cross multiply
    3,707.20x = 5,111.40 × 3,182.32
  4. Step 4: Simplify right side
    3,707.20x = 16,266,110.45
  5. Step 5: Solve for x
    x = 16,266,110.45/3,707.20
  6. Step 6: Final answer
    x = 4,387.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.