Home / 4,279.47-6,416.97-1,938.36

Finding the Fourth Proportional to 4,279.47, 6,416.97 and 1,938.36

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Solution

The fourth proportional to 4,279.47, 6,416.97 and 1,938.36 is: 2,906.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.47 : 6,416.97 = 1,938.36 : x
  2. Step 2: Convert to fraction form
    4,279.47/6,416.97 = 1,938.36/x
  3. Step 3: Cross multiply
    4,279.47x = 6,416.97 × 1,938.36
  4. Step 4: Simplify right side
    4,279.47x = 12,438,397.97
  5. Step 5: Solve for x
    x = 12,438,397.97/4,279.47
  6. Step 6: Final answer
    x = 2,906.53

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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.