Home / 2,814.70-4,214.85-2,080.30

Finding the Fourth Proportional to 2,814.70, 4,214.85 and 2,080.30

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Solution

The fourth proportional to 2,814.70, 4,214.85 and 2,080.30 is: 3,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.70 : 4,214.85 = 2,080.30 : x
  2. Step 2: Convert to fraction form
    2,814.70/4,214.85 = 2,080.30/x
  3. Step 3: Cross multiply
    2,814.70x = 4,214.85 × 2,080.30
  4. Step 4: Simplify right side
    2,814.70x = 8,768,152.46
  5. Step 5: Solve for x
    x = 8,768,152.46/2,814.70
  6. Step 6: Final answer
    x = 3,115.13

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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.