Home / 2,321.24-3,480.30-1,281.74

Finding the Fourth Proportional to 2,321.24, 3,480.30 and 1,281.74

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Solution

The fourth proportional to 2,321.24, 3,480.30 and 1,281.74 is: 1,921.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.24 : 3,480.30 = 1,281.74 : x
  2. Step 2: Convert to fraction form
    2,321.24/3,480.30 = 1,281.74/x
  3. Step 3: Cross multiply
    2,321.24x = 3,480.30 × 1,281.74
  4. Step 4: Simplify right side
    2,321.24x = 4,460,822.32
  5. Step 5: Solve for x
    x = 4,460,822.32/2,321.24
  6. Step 6: Final answer
    x = 1,921.75

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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.