Home / 3,937.60-5,904.78-3,117.88

Finding the Fourth Proportional to 3,937.60, 5,904.78 and 3,117.88

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Solution

The fourth proportional to 3,937.60, 5,904.78 and 3,117.88 is: 4,675.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.60 : 5,904.78 = 3,117.88 : x
  2. Step 2: Convert to fraction form
    3,937.60/5,904.78 = 3,117.88/x
  3. Step 3: Cross multiply
    3,937.60x = 5,904.78 × 3,117.88
  4. Step 4: Simplify right side
    3,937.60x = 18,410,395.47
  5. Step 5: Solve for x
    x = 18,410,395.47/3,937.60
  6. Step 6: Final answer
    x = 4,675.54

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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.