Home / 4,743.31-7,114.15-1,279.75

Finding the Fourth Proportional to 4,743.31, 7,114.15 and 1,279.75

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Solution

The fourth proportional to 4,743.31, 7,114.15 and 1,279.75 is: 1,919.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,743.31 : 7,114.15 = 1,279.75 : x
  2. Step 2: Convert to fraction form
    4,743.31/7,114.15 = 1,279.75/x
  3. Step 3: Cross multiply
    4,743.31x = 7,114.15 × 1,279.75
  4. Step 4: Simplify right side
    4,743.31x = 9,104,333.46
  5. Step 5: Solve for x
    x = 9,104,333.46/4,743.31
  6. Step 6: Final answer
    x = 1,919.41

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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.