Home / 5,285.42-7,959.03-3,908.47

Finding the Fourth Proportional to 5,285.42, 7,959.03 and 3,908.47

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Solution

The fourth proportional to 5,285.42, 7,959.03 and 3,908.47 is: 5,885.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,285.42 : 7,959.03 = 3,908.47 : x
  2. Step 2: Convert to fraction form
    5,285.42/7,959.03 = 3,908.47/x
  3. Step 3: Cross multiply
    5,285.42x = 7,959.03 × 3,908.47
  4. Step 4: Simplify right side
    5,285.42x = 31,107,585.02
  5. Step 5: Solve for x
    x = 31,107,585.02/5,285.42
  6. Step 6: Final answer
    x = 5,885.55

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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.