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Finding the Fourth Proportional to 2,956.50, 4,080.20 and 1,630.44

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Solution

The fourth proportional to 2,956.50, 4,080.20 and 1,630.44 is: 2,250.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,956.50 : 4,080.20 = 1,630.44 : x
  2. Step 2: Convert to fraction form
    2,956.50/4,080.20 = 1,630.44/x
  3. Step 3: Cross multiply
    2,956.50x = 4,080.20 × 1,630.44
  4. Step 4: Simplify right side
    2,956.50x = 6,652,521.29
  5. Step 5: Solve for x
    x = 6,652,521.29/2,956.50
  6. Step 6: Final answer
    x = 2,250.13

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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.