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Finding the Fourth Proportional to 2,398.91, 3,310.45 and 1,350.98

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Solution

The fourth proportional to 2,398.91, 3,310.45 and 1,350.98 is: 1,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,398.91 : 3,310.45 = 1,350.98 : x
  2. Step 2: Convert to fraction form
    2,398.91/3,310.45 = 1,350.98/x
  3. Step 3: Cross multiply
    2,398.91x = 3,310.45 × 1,350.98
  4. Step 4: Simplify right side
    2,398.91x = 4,472,335.19
  5. Step 5: Solve for x
    x = 4,472,335.19/2,398.91
  6. Step 6: Final answer
    x = 1,864.32

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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.