Home / 4,748.12-7,119.14-1,976.70

Finding the Fourth Proportional to 4,748.12, 7,119.14 and 1,976.70

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Solution

The fourth proportional to 4,748.12, 7,119.14 and 1,976.70 is: 2,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.12 : 7,119.14 = 1,976.70 : x
  2. Step 2: Convert to fraction form
    4,748.12/7,119.14 = 1,976.70/x
  3. Step 3: Cross multiply
    4,748.12x = 7,119.14 × 1,976.70
  4. Step 4: Simplify right side
    4,748.12x = 14,072,404.04
  5. Step 5: Solve for x
    x = 14,072,404.04/4,748.12
  6. Step 6: Final answer
    x = 2,963.78

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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.