Home / 3,954.29-5,457.16-2,275.66

Finding the Fourth Proportional to 3,954.29, 5,457.16 and 2,275.66

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Solution

The fourth proportional to 3,954.29, 5,457.16 and 2,275.66 is: 3,140.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954.29 : 5,457.16 = 2,275.66 : x
  2. Step 2: Convert to fraction form
    3,954.29/5,457.16 = 2,275.66/x
  3. Step 3: Cross multiply
    3,954.29x = 5,457.16 × 2,275.66
  4. Step 4: Simplify right side
    3,954.29x = 12,418,641.44
  5. Step 5: Solve for x
    x = 12,418,641.44/3,954.29
  6. Step 6: Final answer
    x = 3,140.55

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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.