Home / 5,695.25-7,860.05-3,178.24

Finding the Fourth Proportional to 5,695.25, 7,860.05 and 3,178.24

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Solution

The fourth proportional to 5,695.25, 7,860.05 and 3,178.24 is: 4,386.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.25 : 7,860.05 = 3,178.24 : x
  2. Step 2: Convert to fraction form
    5,695.25/7,860.05 = 3,178.24/x
  3. Step 3: Cross multiply
    5,695.25x = 7,860.05 × 3,178.24
  4. Step 4: Simplify right side
    5,695.25x = 24,981,119.57
  5. Step 5: Solve for x
    x = 24,981,119.57/5,695.25
  6. Step 6: Final answer
    x = 4,386.31

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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.