Home / 3,948.95-5,449.51-2,271.34

Finding the Fourth Proportional to 3,948.95, 5,449.51 and 2,271.34

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Solution

The fourth proportional to 3,948.95, 5,449.51 and 2,271.34 is: 3,134.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.95 : 5,449.51 = 2,271.34 : x
  2. Step 2: Convert to fraction form
    3,948.95/5,449.51 = 2,271.34/x
  3. Step 3: Cross multiply
    3,948.95x = 5,449.51 × 2,271.34
  4. Step 4: Simplify right side
    3,948.95x = 12,377,699.69
  5. Step 5: Solve for x
    x = 12,377,699.69/3,948.95
  6. Step 6: Final answer
    x = 3,134.43

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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.