Home / 3,612.20-5,426.40-2,518.70

Finding the Fourth Proportional to 3,612.20, 5,426.40 and 2,518.70

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Solution

The fourth proportional to 3,612.20, 5,426.40 and 2,518.70 is: 3,783.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.20 : 5,426.40 = 2,518.70 : x
  2. Step 2: Convert to fraction form
    3,612.20/5,426.40 = 2,518.70/x
  3. Step 3: Cross multiply
    3,612.20x = 5,426.40 × 2,518.70
  4. Step 4: Simplify right side
    3,612.20x = 13,667,473.68
  5. Step 5: Solve for x
    x = 13,667,473.68/3,612.20
  6. Step 6: Final answer
    x = 3,783.70

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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.