Home / 5,242.30-7,867.09-3,388.81

Finding the Fourth Proportional to 5,242.30, 7,867.09 and 3,388.81

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Solution

The fourth proportional to 5,242.30, 7,867.09 and 3,388.81 is: 5,085.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.30 : 7,867.09 = 3,388.81 : x
  2. Step 2: Convert to fraction form
    5,242.30/7,867.09 = 3,388.81/x
  3. Step 3: Cross multiply
    5,242.30x = 7,867.09 × 3,388.81
  4. Step 4: Simplify right side
    5,242.30x = 26,660,073.26
  5. Step 5: Solve for x
    x = 26,660,073.26/5,242.30
  6. Step 6: Final answer
    x = 5,085.57

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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.