Home / 5,345.92-7,377.88-3,107.60

Finding the Fourth Proportional to 5,345.92, 7,377.88 and 3,107.60

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Solution

The fourth proportional to 5,345.92, 7,377.88 and 3,107.60 is: 4,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.92 : 7,377.88 = 3,107.60 : x
  2. Step 2: Convert to fraction form
    5,345.92/7,377.88 = 3,107.60/x
  3. Step 3: Cross multiply
    5,345.92x = 7,377.88 × 3,107.60
  4. Step 4: Simplify right side
    5,345.92x = 22,927,499.89
  5. Step 5: Solve for x
    x = 22,927,499.89/5,345.92
  6. Step 6: Final answer
    x = 4,288.78

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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.