Home / 5,340.16-7,366.08-3,479.68

Finding the Fourth Proportional to 5,340.16, 7,366.08 and 3,479.68

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Solution

The fourth proportional to 5,340.16, 7,366.08 and 3,479.68 is: 4,799.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,340.16 : 7,366.08 = 3,479.68 : x
  2. Step 2: Convert to fraction form
    5,340.16/7,366.08 = 3,479.68/x
  3. Step 3: Cross multiply
    5,340.16x = 7,366.08 × 3,479.68
  4. Step 4: Simplify right side
    5,340.16x = 25,631,601.25
  5. Step 5: Solve for x
    x = 25,631,601.25/5,340.16
  6. Step 6: Final answer
    x = 4,799.78

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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.