Home / 3,384.12-4,670.05-1,871.78

Finding the Fourth Proportional to 3,384.12, 4,670.05 and 1,871.78

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Solution

The fourth proportional to 3,384.12, 4,670.05 and 1,871.78 is: 2,583.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.12 : 4,670.05 = 1,871.78 : x
  2. Step 2: Convert to fraction form
    3,384.12/4,670.05 = 1,871.78/x
  3. Step 3: Cross multiply
    3,384.12x = 4,670.05 × 1,871.78
  4. Step 4: Simplify right side
    3,384.12x = 8,741,306.19
  5. Step 5: Solve for x
    x = 8,741,306.19/3,384.12
  6. Step 6: Final answer
    x = 2,583.04

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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.