Home / 5,180.85-7,772.38-1,671.06

Finding the Fourth Proportional to 5,180.85, 7,772.38 and 1,671.06

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Solution

The fourth proportional to 5,180.85, 7,772.38 and 1,671.06 is: 2,506.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,180.85 : 7,772.38 = 1,671.06 : x
  2. Step 2: Convert to fraction form
    5,180.85/7,772.38 = 1,671.06/x
  3. Step 3: Cross multiply
    5,180.85x = 7,772.38 × 1,671.06
  4. Step 4: Simplify right side
    5,180.85x = 12,988,089.40
  5. Step 5: Solve for x
    x = 12,988,089.40/5,180.85
  6. Step 6: Final answer
    x = 2,506.94

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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.