Home / 5,132.40-7,082.20-3,036.40

Finding the Fourth Proportional to 5,132.40, 7,082.20 and 3,036.40

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Solution

The fourth proportional to 5,132.40, 7,082.20 and 3,036.40 is: 4,189.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,132.40 : 7,082.20 = 3,036.40 : x
  2. Step 2: Convert to fraction form
    5,132.40/7,082.20 = 3,036.40/x
  3. Step 3: Cross multiply
    5,132.40x = 7,082.20 × 3,036.40
  4. Step 4: Simplify right side
    5,132.40x = 21,504,392.08
  5. Step 5: Solve for x
    x = 21,504,392.08/5,132.40
  6. Step 6: Final answer
    x = 4,189.93

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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.