Home / 3,041.85-4,540.78-2,672.80

Finding the Fourth Proportional to 3,041.85, 4,540.78 and 2,672.80

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Solution

The fourth proportional to 3,041.85, 4,540.78 and 2,672.80 is: 3,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,041.85 : 4,540.78 = 2,672.80 : x
  2. Step 2: Convert to fraction form
    3,041.85/4,540.78 = 2,672.80/x
  3. Step 3: Cross multiply
    3,041.85x = 4,540.78 × 2,672.80
  4. Step 4: Simplify right side
    3,041.85x = 12,136,573.74
  5. Step 5: Solve for x
    x = 12,136,573.74/3,041.85
  6. Step 6: Final answer
    x = 3,989.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.