Home / 2,281.16-3,398.20-2,175.46

Finding the Fourth Proportional to 2,281.16, 3,398.20 and 2,175.46

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Solution

The fourth proportional to 2,281.16, 3,398.20 and 2,175.46 is: 3,240.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.16 : 3,398.20 = 2,175.46 : x
  2. Step 2: Convert to fraction form
    2,281.16/3,398.20 = 2,175.46/x
  3. Step 3: Cross multiply
    2,281.16x = 3,398.20 × 2,175.46
  4. Step 4: Simplify right side
    2,281.16x = 7,392,646.47
  5. Step 5: Solve for x
    x = 7,392,646.47/2,281.16
  6. Step 6: Final answer
    x = 3,240.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.