Home / 2,235.20-3,084.58-1,240.49

Finding the Fourth Proportional to 2,235.20, 3,084.58 and 1,240.49

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Solution

The fourth proportional to 2,235.20, 3,084.58 and 1,240.49 is: 1,711.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.20 : 3,084.58 = 1,240.49 : x
  2. Step 2: Convert to fraction form
    2,235.20/3,084.58 = 1,240.49/x
  3. Step 3: Cross multiply
    2,235.20x = 3,084.58 × 1,240.49
  4. Step 4: Simplify right side
    2,235.20x = 3,826,390.64
  5. Step 5: Solve for x
    x = 3,826,390.64/2,235.20
  6. Step 6: Final answer
    x = 1,711.88

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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.