Home / 5,627.21-7,765.34-3,109.46

Finding the Fourth Proportional to 5,627.21, 7,765.34 and 3,109.46

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Solution

The fourth proportional to 5,627.21, 7,765.34 and 3,109.46 is: 4,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,627.21 : 7,765.34 = 3,109.46 : x
  2. Step 2: Convert to fraction form
    5,627.21/7,765.34 = 3,109.46/x
  3. Step 3: Cross multiply
    5,627.21x = 7,765.34 × 3,109.46
  4. Step 4: Simplify right side
    5,627.21x = 24,145,959.74
  5. Step 5: Solve for x
    x = 24,145,959.74/5,627.21
  6. Step 6: Final answer
    x = 4,290.93

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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.