Home / 2,285.98-3,154.65-1,291.26

Finding the Fourth Proportional to 2,285.98, 3,154.65 and 1,291.26

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Solution

The fourth proportional to 2,285.98, 3,154.65 and 1,291.26 is: 1,781.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285.98 : 3,154.65 = 1,291.26 : x
  2. Step 2: Convert to fraction form
    2,285.98/3,154.65 = 1,291.26/x
  3. Step 3: Cross multiply
    2,285.98x = 3,154.65 × 1,291.26
  4. Step 4: Simplify right side
    2,285.98x = 4,073,473.36
  5. Step 5: Solve for x
    x = 4,073,473.36/2,285.98
  6. Step 6: Final answer
    x = 1,781.94

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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.