Home / 4,200.38-6,301.51-1,278.91

Finding the Fourth Proportional to 4,200.38, 6,301.51 and 1,278.91

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Solution

The fourth proportional to 4,200.38, 6,301.51 and 1,278.91 is: 1,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.38 : 6,301.51 = 1,278.91 : x
  2. Step 2: Convert to fraction form
    4,200.38/6,301.51 = 1,278.91/x
  3. Step 3: Cross multiply
    4,200.38x = 6,301.51 × 1,278.91
  4. Step 4: Simplify right side
    4,200.38x = 8,059,057.76
  5. Step 5: Solve for x
    x = 8,059,057.76/4,200.38
  6. Step 6: Final answer
    x = 1,918.65

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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.