Home / 2,235.16-3,084.54-1,240.40

Finding the Fourth Proportional to 2,235.16, 3,084.54 and 1,240.40

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Solution

The fourth proportional to 2,235.16, 3,084.54 and 1,240.40 is: 1,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.16 : 3,084.54 = 1,240.40 : x
  2. Step 2: Convert to fraction form
    2,235.16/3,084.54 = 1,240.40/x
  3. Step 3: Cross multiply
    2,235.16x = 3,084.54 × 1,240.40
  4. Step 4: Simplify right side
    2,235.16x = 3,826,063.42
  5. Step 5: Solve for x
    x = 3,826,063.42/2,235.16
  6. Step 6: Final answer
    x = 1,711.76

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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.