Home / 2,641.18-3,979.36-2,391.16

Finding the Fourth Proportional to 2,641.18, 3,979.36 and 2,391.16

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Solution

The fourth proportional to 2,641.18, 3,979.36 and 2,391.16 is: 3,602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.18 : 3,979.36 = 2,391.16 : x
  2. Step 2: Convert to fraction form
    2,641.18/3,979.36 = 2,391.16/x
  3. Step 3: Cross multiply
    2,641.18x = 3,979.36 × 2,391.16
  4. Step 4: Simplify right side
    2,641.18x = 9,515,286.46
  5. Step 5: Solve for x
    x = 9,515,286.46/2,641.18
  6. Step 6: Final answer
    x = 3,602.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.