Home / 6,648.20-9,956.10-3,181.40

Finding the Fourth Proportional to 6,648.20, 9,956.10 and 3,181.40

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Solution

The fourth proportional to 6,648.20, 9,956.10 and 3,181.40 is: 4,764.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.20 : 9,956.10 = 3,181.40 : x
  2. Step 2: Convert to fraction form
    6,648.20/9,956.10 = 3,181.40/x
  3. Step 3: Cross multiply
    6,648.20x = 9,956.10 × 3,181.40
  4. Step 4: Simplify right side
    6,648.20x = 31,674,336.54
  5. Step 5: Solve for x
    x = 31,674,336.54/6,648.20
  6. Step 6: Final answer
    x = 4,764.35

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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.