Home / 5,695.18-7,859.80-3,177.38

Finding the Fourth Proportional to 5,695.18, 7,859.80 and 3,177.38

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Solution

The fourth proportional to 5,695.18, 7,859.80 and 3,177.38 is: 4,385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.18 : 7,859.80 = 3,177.38 : x
  2. Step 2: Convert to fraction form
    5,695.18/7,859.80 = 3,177.38/x
  3. Step 3: Cross multiply
    5,695.18x = 7,859.80 × 3,177.38
  4. Step 4: Simplify right side
    5,695.18x = 24,973,571.32
  5. Step 5: Solve for x
    x = 24,973,571.32/5,695.18
  6. Step 6: Final answer
    x = 4,385.04

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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.