Home / 6,519.10-9,778.65-2,136.70

Finding the Fourth Proportional to 6,519.10, 9,778.65 and 2,136.70

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Solution

The fourth proportional to 6,519.10, 9,778.65 and 2,136.70 is: 3,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.10 : 9,778.65 = 2,136.70 : x
  2. Step 2: Convert to fraction form
    6,519.10/9,778.65 = 2,136.70/x
  3. Step 3: Cross multiply
    6,519.10x = 9,778.65 × 2,136.70
  4. Step 4: Simplify right side
    6,519.10x = 20,894,041.46
  5. Step 5: Solve for x
    x = 20,894,041.46/6,519.10
  6. Step 6: Final answer
    x = 3,205.05

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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.