Home / 7,240.20-10,854.90-3,076.80

Finding the Fourth Proportional to 7,240.20, 10,854.90 and 3,076.80

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Solution

The fourth proportional to 7,240.20, 10,854.90 and 3,076.80 is: 4,612.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,240.20 : 10,854.90 = 3,076.80 : x
  2. Step 2: Convert to fraction form
    7,240.20/10,854.90 = 3,076.80/x
  3. Step 3: Cross multiply
    7,240.20x = 10,854.90 × 3,076.80
  4. Step 4: Simplify right side
    7,240.20x = 33,398,356.32
  5. Step 5: Solve for x
    x = 33,398,356.32/7,240.20
  6. Step 6: Final answer
    x = 4,612.91

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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.