Home / 3,777.20-5,664.98-1,178.72

Finding the Fourth Proportional to 3,777.20, 5,664.98 and 1,178.72

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Solution

The fourth proportional to 3,777.20, 5,664.98 and 1,178.72 is: 1,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.20 : 5,664.98 = 1,178.72 : x
  2. Step 2: Convert to fraction form
    3,777.20/5,664.98 = 1,178.72/x
  3. Step 3: Cross multiply
    3,777.20x = 5,664.98 × 1,178.72
  4. Step 4: Simplify right side
    3,777.20x = 6,677,425.23
  5. Step 5: Solve for x
    x = 6,677,425.23/3,777.20
  6. Step 6: Final answer
    x = 1,767.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.