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Finding the Fourth Proportional to 3,155.88, 4,355.14 and 1,739.62

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Solution

The fourth proportional to 3,155.88, 4,355.14 and 1,739.62 is: 2,400.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.88 : 4,355.14 = 1,739.62 : x
  2. Step 2: Convert to fraction form
    3,155.88/4,355.14 = 1,739.62/x
  3. Step 3: Cross multiply
    3,155.88x = 4,355.14 × 1,739.62
  4. Step 4: Simplify right side
    3,155.88x = 7,576,279.93
  5. Step 5: Solve for x
    x = 7,576,279.93/3,155.88
  6. Step 6: Final answer
    x = 2,400.69

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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.