Home / 3,000.70-4,501.05-2,806.30

Finding the Fourth Proportional to 3,000.70, 4,501.05 and 2,806.30

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Solution

The fourth proportional to 3,000.70, 4,501.05 and 2,806.30 is: 4,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.70 : 4,501.05 = 2,806.30 : x
  2. Step 2: Convert to fraction form
    3,000.70/4,501.05 = 2,806.30/x
  3. Step 3: Cross multiply
    3,000.70x = 4,501.05 × 2,806.30
  4. Step 4: Simplify right side
    3,000.70x = 12,631,296.62
  5. Step 5: Solve for x
    x = 12,631,296.62/3,000.70
  6. Step 6: Final answer
    x = 4,209.45

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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.