Home / 2,426.40-3,639.60-2,175.30

Finding the Fourth Proportional to 2,426.40, 3,639.60 and 2,175.30

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Solution

The fourth proportional to 2,426.40, 3,639.60 and 2,175.30 is: 3,262.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,426.40 : 3,639.60 = 2,175.30 : x
  2. Step 2: Convert to fraction form
    2,426.40/3,639.60 = 2,175.30/x
  3. Step 3: Cross multiply
    2,426.40x = 3,639.60 × 2,175.30
  4. Step 4: Simplify right side
    2,426.40x = 7,917,221.88
  5. Step 5: Solve for x
    x = 7,917,221.88/2,426.40
  6. Step 6: Final answer
    x = 3,262.95

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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.