Home / 5,419.80-7,480.92-3,182.16

Finding the Fourth Proportional to 5,419.80, 7,480.92 and 3,182.16

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Solution

The fourth proportional to 5,419.80, 7,480.92 and 3,182.16 is: 4,392.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.80 : 7,480.92 = 3,182.16 : x
  2. Step 2: Convert to fraction form
    5,419.80/7,480.92 = 3,182.16/x
  3. Step 3: Cross multiply
    5,419.80x = 7,480.92 × 3,182.16
  4. Step 4: Simplify right side
    5,419.80x = 23,805,484.39
  5. Step 5: Solve for x
    x = 23,805,484.39/5,419.80
  6. Step 6: Final answer
    x = 4,392.32

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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.