Home / 5,124.60-7,686.92-3,392.80

Finding the Fourth Proportional to 5,124.60, 7,686.92 and 3,392.80

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Solution

The fourth proportional to 5,124.60, 7,686.92 and 3,392.80 is: 5,089.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.60 : 7,686.92 = 3,392.80 : x
  2. Step 2: Convert to fraction form
    5,124.60/7,686.92 = 3,392.80/x
  3. Step 3: Cross multiply
    5,124.60x = 7,686.92 × 3,392.80
  4. Step 4: Simplify right side
    5,124.60x = 26,080,182.18
  5. Step 5: Solve for x
    x = 26,080,182.18/5,124.60
  6. Step 6: Final answer
    x = 5,089.21

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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.