Home / 3,039.40-4,559.10-2,820.70

Finding the Fourth Proportional to 3,039.40, 4,559.10 and 2,820.70

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Solution

The fourth proportional to 3,039.40, 4,559.10 and 2,820.70 is: 4,231.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.40 : 4,559.10 = 2,820.70 : x
  2. Step 2: Convert to fraction form
    3,039.40/4,559.10 = 2,820.70/x
  3. Step 3: Cross multiply
    3,039.40x = 4,559.10 × 2,820.70
  4. Step 4: Simplify right side
    3,039.40x = 12,859,853.37
  5. Step 5: Solve for x
    x = 12,859,853.37/3,039.40
  6. Step 6: Final answer
    x = 4,231.05

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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.