Home / 3,953.85-5,456.16-2,275.52

Finding the Fourth Proportional to 3,953.85, 5,456.16 and 2,275.52

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Solution

The fourth proportional to 3,953.85, 5,456.16 and 2,275.52 is: 3,140.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,953.85 : 5,456.16 = 2,275.52 : x
  2. Step 2: Convert to fraction form
    3,953.85/5,456.16 = 2,275.52/x
  3. Step 3: Cross multiply
    3,953.85x = 5,456.16 × 2,275.52
  4. Step 4: Simplify right side
    3,953.85x = 12,415,573.92
  5. Step 5: Solve for x
    x = 12,415,573.92/3,953.85
  6. Step 6: Final answer
    x = 3,140.12

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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.