Home / 5,242.13-7,863.20-1,293.39

Finding the Fourth Proportional to 5,242.13, 7,863.20 and 1,293.39

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Solution

The fourth proportional to 5,242.13, 7,863.20 and 1,293.39 is: 1,940.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.13 : 7,863.20 = 1,293.39 : x
  2. Step 2: Convert to fraction form
    5,242.13/7,863.20 = 1,293.39/x
  3. Step 3: Cross multiply
    5,242.13x = 7,863.20 × 1,293.39
  4. Step 4: Simplify right side
    5,242.13x = 10,170,184.25
  5. Step 5: Solve for x
    x = 10,170,184.25/5,242.13
  6. Step 6: Final answer
    x = 1,940.09

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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.