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Finding the Fourth Proportional to 1,626.72, 2,440.08 and 1,306.32

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Solution

The fourth proportional to 1,626.72, 2,440.08 and 1,306.32 is: 1,959.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.72 : 2,440.08 = 1,306.32 : x
  2. Step 2: Convert to fraction form
    1,626.72/2,440.08 = 1,306.32/x
  3. Step 3: Cross multiply
    1,626.72x = 2,440.08 × 1,306.32
  4. Step 4: Simplify right side
    1,626.72x = 3,187,525.31
  5. Step 5: Solve for x
    x = 3,187,525.31/1,626.72
  6. Step 6: Final answer
    x = 1,959.48

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.