Home / 5,695.64-7,860.34-3,177.76

Finding the Fourth Proportional to 5,695.64, 7,860.34 and 3,177.76

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Solution

The fourth proportional to 5,695.64, 7,860.34 and 3,177.76 is: 4,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,695.64 : 7,860.34 = 3,177.76 : x
  2. Step 2: Convert to fraction form
    5,695.64/7,860.34 = 3,177.76/x
  3. Step 3: Cross multiply
    5,695.64x = 7,860.34 × 3,177.76
  4. Step 4: Simplify right side
    5,695.64x = 24,978,246.44
  5. Step 5: Solve for x
    x = 24,978,246.44/5,695.64
  6. Step 6: Final answer
    x = 4,385.50

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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.