Home / 4,748.16-7,121.28-3,976.32

Finding the Fourth Proportional to 4,748.16, 7,121.28 and 3,976.32

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Solution

The fourth proportional to 4,748.16, 7,121.28 and 3,976.32 is: 5,963.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.16 : 7,121.28 = 3,976.32 : x
  2. Step 2: Convert to fraction form
    4,748.16/7,121.28 = 3,976.32/x
  3. Step 3: Cross multiply
    4,748.16x = 7,121.28 × 3,976.32
  4. Step 4: Simplify right side
    4,748.16x = 28,316,488.09
  5. Step 5: Solve for x
    x = 28,316,488.09/4,748.16
  6. Step 6: Final answer
    x = 5,963.68

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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.