Home / 6,807.90-10,211.85-2,912.70

Finding the Fourth Proportional to 6,807.90, 10,211.85 and 2,912.70

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Solution

The fourth proportional to 6,807.90, 10,211.85 and 2,912.70 is: 4,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.90 : 10,211.85 = 2,912.70 : x
  2. Step 2: Convert to fraction form
    6,807.90/10,211.85 = 2,912.70/x
  3. Step 3: Cross multiply
    6,807.90x = 10,211.85 × 2,912.70
  4. Step 4: Simplify right side
    6,807.90x = 29,744,055.50
  5. Step 5: Solve for x
    x = 29,744,055.50/6,807.90
  6. Step 6: Final answer
    x = 4,369.05

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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.