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Finding the Fourth Proportional to 2,956.58, 4,079.06 and 1,895.20

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Solution

The fourth proportional to 2,956.58, 4,079.06 and 1,895.20 is: 2,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.58 : 4,079.06 = 1,895.20 : x
  2. Step 2: Convert to fraction form
    2,956.58/4,079.06 = 1,895.20/x
  3. Step 3: Cross multiply
    2,956.58x = 4,079.06 × 1,895.20
  4. Step 4: Simplify right side
    2,956.58x = 7,730,621.95
  5. Step 5: Solve for x
    x = 7,730,621.95/2,956.58
  6. Step 6: Final answer
    x = 2,614.72

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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.