Home / 5,627.55-7,766.37-3,109.53

Finding the Fourth Proportional to 5,627.55, 7,766.37 and 3,109.53

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Solution

The fourth proportional to 5,627.55, 7,766.37 and 3,109.53 is: 4,291.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.55 : 7,766.37 = 3,109.53 : x
  2. Step 2: Convert to fraction form
    5,627.55/7,766.37 = 3,109.53/x
  3. Step 3: Cross multiply
    5,627.55x = 7,766.37 × 3,109.53
  4. Step 4: Simplify right side
    5,627.55x = 24,149,760.51
  5. Step 5: Solve for x
    x = 24,149,760.51/5,627.55
  6. Step 6: Final answer
    x = 4,291.35

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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.