Home / 2,281.35-3,149.61-1,442.79

Finding the Fourth Proportional to 2,281.35, 3,149.61 and 1,442.79

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Solution

The fourth proportional to 2,281.35, 3,149.61 and 1,442.79 is: 1,991.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.35 : 3,149.61 = 1,442.79 : x
  2. Step 2: Convert to fraction form
    2,281.35/3,149.61 = 1,442.79/x
  3. Step 3: Cross multiply
    2,281.35x = 3,149.61 × 1,442.79
  4. Step 4: Simplify right side
    2,281.35x = 4,544,225.81
  5. Step 5: Solve for x
    x = 4,544,225.81/2,281.35
  6. Step 6: Final answer
    x = 1,991.90

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1.5x scale

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.