Home / 5,627.29-7,765.27-3,109.35

Finding the Fourth Proportional to 5,627.29, 7,765.27 and 3,109.35

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Solution

The fourth proportional to 5,627.29, 7,765.27 and 3,109.35 is: 4,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.29 : 7,765.27 = 3,109.35 : x
  2. Step 2: Convert to fraction form
    5,627.29/7,765.27 = 3,109.35/x
  3. Step 3: Cross multiply
    5,627.29x = 7,765.27 × 3,109.35
  4. Step 4: Simplify right side
    5,627.29x = 24,144,963.62
  5. Step 5: Solve for x
    x = 24,144,963.62/5,627.29
  6. Step 6: Final answer
    x = 4,290.69

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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.