Home / 2,267.61-3,398.17-1,291.70

Finding the Fourth Proportional to 2,267.61, 3,398.17 and 1,291.70

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Solution

The fourth proportional to 2,267.61, 3,398.17 and 1,291.70 is: 1,935.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,267.61 : 3,398.17 = 1,291.70 : x
  2. Step 2: Convert to fraction form
    2,267.61/3,398.17 = 1,291.70/x
  3. Step 3: Cross multiply
    2,267.61x = 3,398.17 × 1,291.70
  4. Step 4: Simplify right side
    2,267.61x = 4,389,416.19
  5. Step 5: Solve for x
    x = 4,389,416.19/2,267.61
  6. Step 6: Final answer
    x = 1,935.70

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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.