Home / 4,747.20-7,126.20-1,975.92

Finding the Fourth Proportional to 4,747.20, 7,126.20 and 1,975.92

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Solution

The fourth proportional to 4,747.20, 7,126.20 and 1,975.92 is: 2,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,747.20 : 7,126.20 = 1,975.92 : x
  2. Step 2: Convert to fraction form
    4,747.20/7,126.20 = 1,975.92/x
  3. Step 3: Cross multiply
    4,747.20x = 7,126.20 × 1,975.92
  4. Step 4: Simplify right side
    4,747.20x = 14,080,801.10
  5. Step 5: Solve for x
    x = 14,080,801.10/4,747.20
  6. Step 6: Final answer
    x = 2,966.13

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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.