Home / 5,177.16-7,148.70-3,412.20

Finding the Fourth Proportional to 5,177.16, 7,148.70 and 3,412.20

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Solution

The fourth proportional to 5,177.16, 7,148.70 and 3,412.20 is: 4,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177.16 : 7,148.70 = 3,412.20 : x
  2. Step 2: Convert to fraction form
    5,177.16/7,148.70 = 3,412.20/x
  3. Step 3: Cross multiply
    5,177.16x = 7,148.70 × 3,412.20
  4. Step 4: Simplify right side
    5,177.16x = 24,392,794.14
  5. Step 5: Solve for x
    x = 24,392,794.14/5,177.16
  6. Step 6: Final answer
    x = 4,711.62

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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.