Home / 3,278.40-4,521.06-2,531.13

Finding the Fourth Proportional to 3,278.40, 4,521.06 and 2,531.13

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Solution

The fourth proportional to 3,278.40, 4,521.06 and 2,531.13 is: 3,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.40 : 4,521.06 = 2,531.13 : x
  2. Step 2: Convert to fraction form
    3,278.40/4,521.06 = 2,531.13/x
  3. Step 3: Cross multiply
    3,278.40x = 4,521.06 × 2,531.13
  4. Step 4: Simplify right side
    3,278.40x = 11,443,390.60
  5. Step 5: Solve for x
    x = 11,443,390.60/3,278.40
  6. Step 6: Final answer
    x = 3,490.54

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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.