Home / 6,780.12-9,356.13-3,795.90

Finding the Fourth Proportional to 6,780.12, 9,356.13 and 3,795.90

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Solution

The fourth proportional to 6,780.12, 9,356.13 and 3,795.90 is: 5,238.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.12 : 9,356.13 = 3,795.90 : x
  2. Step 2: Convert to fraction form
    6,780.12/9,356.13 = 3,795.90/x
  3. Step 3: Cross multiply
    6,780.12x = 9,356.13 × 3,795.90
  4. Step 4: Simplify right side
    6,780.12x = 35,514,933.87
  5. Step 5: Solve for x
    x = 35,514,933.87/6,780.12
  6. Step 6: Final answer
    x = 5,238.10

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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.