Home / 4,288.78-6,433.20-4,102.90

Finding the Fourth Proportional to 4,288.78, 6,433.20 and 4,102.90

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Solution

The fourth proportional to 4,288.78, 6,433.20 and 4,102.90 is: 6,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,288.78 : 6,433.20 = 4,102.90 : x
  2. Step 2: Convert to fraction form
    4,288.78/6,433.20 = 4,102.90/x
  3. Step 3: Cross multiply
    4,288.78x = 6,433.20 × 4,102.90
  4. Step 4: Simplify right side
    4,288.78x = 26,394,776.28
  5. Step 5: Solve for x
    x = 26,394,776.28/4,288.78
  6. Step 6: Final answer
    x = 6,154.38

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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.