Home / 2,235.36-3,084.69-1,240.65

Finding the Fourth Proportional to 2,235.36, 3,084.69 and 1,240.65

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Solution

The fourth proportional to 2,235.36, 3,084.69 and 1,240.65 is: 1,712.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,235.36 : 3,084.69 = 1,240.65 : x
  2. Step 2: Convert to fraction form
    2,235.36/3,084.69 = 1,240.65/x
  3. Step 3: Cross multiply
    2,235.36x = 3,084.69 × 1,240.65
  4. Step 4: Simplify right side
    2,235.36x = 3,827,020.65
  5. Step 5: Solve for x
    x = 3,827,020.65/2,235.36
  6. Step 6: Final answer
    x = 1,712.04

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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.