Home / 5,587.75-7,711.10-3,103.75

Finding the Fourth Proportional to 5,587.75, 7,711.10 and 3,103.75

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Solution

The fourth proportional to 5,587.75, 7,711.10 and 3,103.75 is: 4,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,587.75 : 7,711.10 = 3,103.75 : x
  2. Step 2: Convert to fraction form
    5,587.75/7,711.10 = 3,103.75/x
  3. Step 3: Cross multiply
    5,587.75x = 7,711.10 × 3,103.75
  4. Step 4: Simplify right side
    5,587.75x = 23,933,326.63
  5. Step 5: Solve for x
    x = 23,933,326.63/5,587.75
  6. Step 6: Final answer
    x = 4,283.18

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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.