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Finding the Fourth Proportional to 2,263.40, 3,398.70 and 1,651.40

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Solution

The fourth proportional to 2,263.40, 3,398.70 and 1,651.40 is: 2,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.40 : 3,398.70 = 1,651.40 : x
  2. Step 2: Convert to fraction form
    2,263.40/3,398.70 = 1,651.40/x
  3. Step 3: Cross multiply
    2,263.40x = 3,398.70 × 1,651.40
  4. Step 4: Simplify right side
    2,263.40x = 5,612,613.18
  5. Step 5: Solve for x
    x = 5,612,613.18/2,263.40
  6. Step 6: Final answer
    x = 2,479.73

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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.