Home / 5,601.78-7,730.46-3,117.78

Finding the Fourth Proportional to 5,601.78, 7,730.46 and 3,117.78

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Solution

The fourth proportional to 5,601.78, 7,730.46 and 3,117.78 is: 4,302.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,601.78 : 7,730.46 = 3,117.78 : x
  2. Step 2: Convert to fraction form
    5,601.78/7,730.46 = 3,117.78/x
  3. Step 3: Cross multiply
    5,601.78x = 7,730.46 × 3,117.78
  4. Step 4: Simplify right side
    5,601.78x = 24,101,873.58
  5. Step 5: Solve for x
    x = 24,101,873.58/5,601.78
  6. Step 6: Final answer
    x = 4,302.54

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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.