Home / 3,925.90-5,422.53-2,935.56

Finding the Fourth Proportional to 3,925.90, 5,422.53 and 2,935.56

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Solution

The fourth proportional to 3,925.90, 5,422.53 and 2,935.56 is: 4,054.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,925.90 : 5,422.53 = 2,935.56 : x
  2. Step 2: Convert to fraction form
    3,925.90/5,422.53 = 2,935.56/x
  3. Step 3: Cross multiply
    3,925.90x = 5,422.53 × 2,935.56
  4. Step 4: Simplify right side
    3,925.90x = 15,918,162.17
  5. Step 5: Solve for x
    x = 15,918,162.17/3,925.90
  6. Step 6: Final answer
    x = 4,054.65

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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.