Home / 3,364.18-4,642.28-1,872

Finding the Fourth Proportional to 3,364.18, 4,642.28 and 1,872

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Solution

The fourth proportional to 3,364.18, 4,642.28 and 1,872 is: 2,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,364.18 : 4,642.28 = 1,872 : x
  2. Step 2: Convert to fraction form
    3,364.18/4,642.28 = 1,872/x
  3. Step 3: Cross multiply
    3,364.18x = 4,642.28 × 1,872
  4. Step 4: Simplify right side
    3,364.18x = 8,690,348.16
  5. Step 5: Solve for x
    x = 8,690,348.16/3,364.18
  6. Step 6: Final answer
    x = 2,583.20

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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.