Home / 2,815.20-4,214.70-2,523.60

Finding the Fourth Proportional to 2,815.20, 4,214.70 and 2,523.60

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Solution

The fourth proportional to 2,815.20, 4,214.70 and 2,523.60 is: 3,778.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.20 : 4,214.70 = 2,523.60 : x
  2. Step 2: Convert to fraction form
    2,815.20/4,214.70 = 2,523.60/x
  3. Step 3: Cross multiply
    2,815.20x = 4,214.70 × 2,523.60
  4. Step 4: Simplify right side
    2,815.20x = 10,636,216.92
  5. Step 5: Solve for x
    x = 10,636,216.92/2,815.20
  6. Step 6: Final answer
    x = 3,778.14

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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.