Home / 5,238.88-7,229.69-2,881.18

Finding the Fourth Proportional to 5,238.88, 7,229.69 and 2,881.18

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Solution

The fourth proportional to 5,238.88, 7,229.69 and 2,881.18 is: 3,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,238.88 : 7,229.69 = 2,881.18 : x
  2. Step 2: Convert to fraction form
    5,238.88/7,229.69 = 2,881.18/x
  3. Step 3: Cross multiply
    5,238.88x = 7,229.69 × 2,881.18
  4. Step 4: Simplify right side
    5,238.88x = 20,830,038.23
  5. Step 5: Solve for x
    x = 20,830,038.23/5,238.88
  6. Step 6: Final answer
    x = 3,976.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.