Home / 3,836.64-5,281.47-2,840.04

Finding the Fourth Proportional to 3,836.64, 5,281.47 and 2,840.04

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Solution

The fourth proportional to 3,836.64, 5,281.47 and 2,840.04 is: 3,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.64 : 5,281.47 = 2,840.04 : x
  2. Step 2: Convert to fraction form
    3,836.64/5,281.47 = 2,840.04/x
  3. Step 3: Cross multiply
    3,836.64x = 5,281.47 × 2,840.04
  4. Step 4: Simplify right side
    3,836.64x = 14,999,586.06
  5. Step 5: Solve for x
    x = 14,999,586.06/3,836.64
  6. Step 6: Final answer
    x = 3,909.56

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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.