Home / 2,321.19-3,480.71-1,347.57

Finding the Fourth Proportional to 2,321.19, 3,480.71 and 1,347.57

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Solution

The fourth proportional to 2,321.19, 3,480.71 and 1,347.57 is: 2,020.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.19 : 3,480.71 = 1,347.57 : x
  2. Step 2: Convert to fraction form
    2,321.19/3,480.71 = 1,347.57/x
  3. Step 3: Cross multiply
    2,321.19x = 3,480.71 × 1,347.57
  4. Step 4: Simplify right side
    2,321.19x = 4,690,493.64
  5. Step 5: Solve for x
    x = 4,690,493.64/2,321.19
  6. Step 6: Final answer
    x = 2,020.73

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1.5x scale

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.