Home / 5,537.16-7,640.82-3,178.80

Finding the Fourth Proportional to 5,537.16, 7,640.82 and 3,178.80

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Solution

The fourth proportional to 5,537.16, 7,640.82 and 3,178.80 is: 4,386.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,537.16 : 7,640.82 = 3,178.80 : x
  2. Step 2: Convert to fraction form
    5,537.16/7,640.82 = 3,178.80/x
  3. Step 3: Cross multiply
    5,537.16x = 7,640.82 × 3,178.80
  4. Step 4: Simplify right side
    5,537.16x = 24,288,638.62
  5. Step 5: Solve for x
    x = 24,288,638.62/5,537.16
  6. Step 6: Final answer
    x = 4,386.48

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1.5x scale

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.