Home / 2,651.20-3,660.32-2,401.60

Finding the Fourth Proportional to 2,651.20, 3,660.32 and 2,401.60

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Solution

The fourth proportional to 2,651.20, 3,660.32 and 2,401.60 is: 3,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,651.20 : 3,660.32 = 2,401.60 : x
  2. Step 2: Convert to fraction form
    2,651.20/3,660.32 = 2,401.60/x
  3. Step 3: Cross multiply
    2,651.20x = 3,660.32 × 2,401.60
  4. Step 4: Simplify right side
    2,651.20x = 8,790,624.51
  5. Step 5: Solve for x
    x = 8,790,624.51/2,651.20
  6. Step 6: Final answer
    x = 3,315.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.