Home / 4,200.33-6,300.50-1,278.61

Finding the Fourth Proportional to 4,200.33, 6,300.50 and 1,278.61

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Solution

The fourth proportional to 4,200.33, 6,300.50 and 1,278.61 is: 1,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.33 : 6,300.50 = 1,278.61 : x
  2. Step 2: Convert to fraction form
    4,200.33/6,300.50 = 1,278.61/x
  3. Step 3: Cross multiply
    4,200.33x = 6,300.50 × 1,278.61
  4. Step 4: Simplify right side
    4,200.33x = 8,055,883.79
  5. Step 5: Solve for x
    x = 8,055,883.79/4,200.33
  6. Step 6: Final answer
    x = 1,917.92

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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.