Home / 3,278.32-4,915.24-1,818.16

Finding the Fourth Proportional to 3,278.32, 4,915.24 and 1,818.16

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Solution

The fourth proportional to 3,278.32, 4,915.24 and 1,818.16 is: 2,726.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,278.32 : 4,915.24 = 1,818.16 : x
  2. Step 2: Convert to fraction form
    3,278.32/4,915.24 = 1,818.16/x
  3. Step 3: Cross multiply
    3,278.32x = 4,915.24 × 1,818.16
  4. Step 4: Simplify right side
    3,278.32x = 8,936,692.76
  5. Step 5: Solve for x
    x = 8,936,692.76/3,278.32
  6. Step 6: Final answer
    x = 2,726.00

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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.