Home / 3,385.76-5,071.02-2,639.54

Finding the Fourth Proportional to 3,385.76, 5,071.02 and 2,639.54

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Solution

The fourth proportional to 3,385.76, 5,071.02 and 2,639.54 is: 3,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.76 : 5,071.02 = 2,639.54 : x
  2. Step 2: Convert to fraction form
    3,385.76/5,071.02 = 2,639.54/x
  3. Step 3: Cross multiply
    3,385.76x = 5,071.02 × 2,639.54
  4. Step 4: Simplify right side
    3,385.76x = 13,385,134.78
  5. Step 5: Solve for x
    x = 13,385,134.78/3,385.76
  6. Step 6: Final answer
    x = 3,953.37

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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.