Home / 2,278.26-3,417.08-890.62

Finding the Fourth Proportional to 2,278.26, 3,417.08 and 890.62

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Solution

The fourth proportional to 2,278.26, 3,417.08 and 890.62 is: 1,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.26 : 3,417.08 = 890.62 : x
  2. Step 2: Convert to fraction form
    2,278.26/3,417.08 = 890.62/x
  3. Step 3: Cross multiply
    2,278.26x = 3,417.08 × 890.62
  4. Step 4: Simplify right side
    2,278.26x = 3,043,306.79
  5. Step 5: Solve for x
    x = 3,043,306.79/2,278.26
  6. Step 6: Final answer
    x = 1,335.80

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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.