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Finding the Fourth Proportional to 6,261.57, 9,393.80 and 1,879.11

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Solution

The fourth proportional to 6,261.57, 9,393.80 and 1,879.11 is: 2,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,261.57 : 9,393.80 = 1,879.11 : x
  2. Step 2: Convert to fraction form
    6,261.57/9,393.80 = 1,879.11/x
  3. Step 3: Cross multiply
    6,261.57x = 9,393.80 × 1,879.11
  4. Step 4: Simplify right side
    6,261.57x = 17,651,974.12
  5. Step 5: Solve for x
    x = 17,651,974.12/6,261.57
  6. Step 6: Final answer
    x = 2,819.10

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1.5x scale

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.