Home / 5,228.90-7,854.29-4,408.78

Finding the Fourth Proportional to 5,228.90, 7,854.29 and 4,408.78

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Solution

The fourth proportional to 5,228.90, 7,854.29 and 4,408.78 is: 6,622.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,228.90 : 7,854.29 = 4,408.78 : x
  2. Step 2: Convert to fraction form
    5,228.90/7,854.29 = 4,408.78/x
  3. Step 3: Cross multiply
    5,228.90x = 7,854.29 × 4,408.78
  4. Step 4: Simplify right side
    5,228.90x = 34,627,775.35
  5. Step 5: Solve for x
    x = 34,627,775.35/5,228.90
  6. Step 6: Final answer
    x = 6,622.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.