Home / 6,522.10-9,783.15-2,139.70

Finding the Fourth Proportional to 6,522.10, 9,783.15 and 2,139.70

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Solution

The fourth proportional to 6,522.10, 9,783.15 and 2,139.70 is: 3,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,522.10 : 9,783.15 = 2,139.70 : x
  2. Step 2: Convert to fraction form
    6,522.10/9,783.15 = 2,139.70/x
  3. Step 3: Cross multiply
    6,522.10x = 9,783.15 × 2,139.70
  4. Step 4: Simplify right side
    6,522.10x = 20,933,006.06
  5. Step 5: Solve for x
    x = 20,933,006.06/6,522.10
  6. Step 6: Final answer
    x = 3,209.55

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Similar ratio
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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.