Home / 2,956.40-4,079.85-1,630.15

Finding the Fourth Proportional to 2,956.40, 4,079.85 and 1,630.15

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Solution

The fourth proportional to 2,956.40, 4,079.85 and 1,630.15 is: 2,249.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.40 : 4,079.85 = 1,630.15 : x
  2. Step 2: Convert to fraction form
    2,956.40/4,079.85 = 1,630.15/x
  3. Step 3: Cross multiply
    2,956.40x = 4,079.85 × 1,630.15
  4. Step 4: Simplify right side
    2,956.40x = 6,650,767.48
  5. Step 5: Solve for x
    x = 6,650,767.48/2,956.40
  6. Step 6: Final answer
    x = 2,249.62

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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.