Home / 2,639.64-3,961.80-1,341.84

Finding the Fourth Proportional to 2,639.64, 3,961.80 and 1,341.84

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Solution

The fourth proportional to 2,639.64, 3,961.80 and 1,341.84 is: 2,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639.64 : 3,961.80 = 1,341.84 : x
  2. Step 2: Convert to fraction form
    2,639.64/3,961.80 = 1,341.84/x
  3. Step 3: Cross multiply
    2,639.64x = 3,961.80 × 1,341.84
  4. Step 4: Simplify right side
    2,639.64x = 5,316,101.71
  5. Step 5: Solve for x
    x = 5,316,101.71/2,639.64
  6. Step 6: Final answer
    x = 2,013.95

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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.