Home / 3,889.35-5,360.85-2,753.53

Finding the Fourth Proportional to 3,889.35, 5,360.85 and 2,753.53

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Solution

The fourth proportional to 3,889.35, 5,360.85 and 2,753.53 is: 3,795.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,889.35 : 5,360.85 = 2,753.53 : x
  2. Step 2: Convert to fraction form
    3,889.35/5,360.85 = 2,753.53/x
  3. Step 3: Cross multiply
    3,889.35x = 5,360.85 × 2,753.53
  4. Step 4: Simplify right side
    3,889.35x = 14,761,247.90
  5. Step 5: Solve for x
    x = 14,761,247.90/3,889.35
  6. Step 6: Final answer
    x = 3,795.30

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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.