Home / 6,077.80-8,390.82-4,192.12

Finding the Fourth Proportional to 6,077.80, 8,390.82 and 4,192.12

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Solution

The fourth proportional to 6,077.80, 8,390.82 and 4,192.12 is: 5,787.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,077.80 : 8,390.82 = 4,192.12 : x
  2. Step 2: Convert to fraction form
    6,077.80/8,390.82 = 4,192.12/x
  3. Step 3: Cross multiply
    6,077.80x = 8,390.82 × 4,192.12
  4. Step 4: Simplify right side
    6,077.80x = 35,175,324.34
  5. Step 5: Solve for x
    x = 35,175,324.34/6,077.80
  6. Step 6: Final answer
    x = 5,787.51

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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.