Home / 3,948.68-5,445.86-2,956.30

Finding the Fourth Proportional to 3,948.68, 5,445.86 and 2,956.30

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Solution

The fourth proportional to 3,948.68, 5,445.86 and 2,956.30 is: 4,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,948.68 : 5,445.86 = 2,956.30 : x
  2. Step 2: Convert to fraction form
    3,948.68/5,445.86 = 2,956.30/x
  3. Step 3: Cross multiply
    3,948.68x = 5,445.86 × 2,956.30
  4. Step 4: Simplify right side
    3,948.68x = 16,099,595.92
  5. Step 5: Solve for x
    x = 16,099,595.92/3,948.68
  6. Step 6: Final answer
    x = 4,077.21

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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.