Home / 3,391.92-4,672.74-3,225.15

Finding the Fourth Proportional to 3,391.92, 4,672.74 and 3,225.15

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Solution

The fourth proportional to 3,391.92, 4,672.74 and 3,225.15 is: 4,443.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.92 : 4,672.74 = 3,225.15 : x
  2. Step 2: Convert to fraction form
    3,391.92/4,672.74 = 3,225.15/x
  3. Step 3: Cross multiply
    3,391.92x = 4,672.74 × 3,225.15
  4. Step 4: Simplify right side
    3,391.92x = 15,070,287.41
  5. Step 5: Solve for x
    x = 15,070,287.41/3,391.92
  6. Step 6: Final answer
    x = 4,443.00

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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.