Home / 3,954.57-5,456.90-2,275.65

Finding the Fourth Proportional to 3,954.57, 5,456.90 and 2,275.65

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Solution

The fourth proportional to 3,954.57, 5,456.90 and 2,275.65 is: 3,140.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.57 : 5,456.90 = 2,275.65 : x
  2. Step 2: Convert to fraction form
    3,954.57/5,456.90 = 2,275.65/x
  3. Step 3: Cross multiply
    3,954.57x = 5,456.90 × 2,275.65
  4. Step 4: Simplify right side
    3,954.57x = 12,417,991.64
  5. Step 5: Solve for x
    x = 12,417,991.64/3,954.57
  6. Step 6: Final answer
    x = 3,140.16

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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.