Home / 3,278.56-4,521.36-2,531.40

Finding the Fourth Proportional to 3,278.56, 4,521.36 and 2,531.40

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Solution

The fourth proportional to 3,278.56, 4,521.36 and 2,531.40 is: 3,490.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.56 : 4,521.36 = 2,531.40 : x
  2. Step 2: Convert to fraction form
    3,278.56/4,521.36 = 2,531.40/x
  3. Step 3: Cross multiply
    3,278.56x = 4,521.36 × 2,531.40
  4. Step 4: Simplify right side
    3,278.56x = 11,445,370.70
  5. Step 5: Solve for x
    x = 11,445,370.70/3,278.56
  6. Step 6: Final answer
    x = 3,490.97

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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.