Home / 2,266.20-3,398.85-705.78

Finding the Fourth Proportional to 2,266.20, 3,398.85 and 705.78

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Solution

The fourth proportional to 2,266.20, 3,398.85 and 705.78 is: 1,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,266.20 : 3,398.85 = 705.78 : x
  2. Step 2: Convert to fraction form
    2,266.20/3,398.85 = 705.78/x
  3. Step 3: Cross multiply
    2,266.20x = 3,398.85 × 705.78
  4. Step 4: Simplify right side
    2,266.20x = 2,398,840.35
  5. Step 5: Solve for x
    x = 2,398,840.35/2,266.20
  6. Step 6: Final answer
    x = 1,058.53

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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.