Home / 3,155.66-4,355.10-1,739.58

Finding the Fourth Proportional to 3,155.66, 4,355.10 and 1,739.58

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Solution

The fourth proportional to 3,155.66, 4,355.10 and 1,739.58 is: 2,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,155.66 : 4,355.10 = 1,739.58 : x
  2. Step 2: Convert to fraction form
    3,155.66/4,355.10 = 1,739.58/x
  3. Step 3: Cross multiply
    3,155.66x = 4,355.10 × 1,739.58
  4. Step 4: Simplify right side
    3,155.66x = 7,576,044.86
  5. Step 5: Solve for x
    x = 7,576,044.86/3,155.66
  6. Step 6: Final answer
    x = 2,400.78

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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.