Home / 3,129.64-4,686.97-1,739.52

Finding the Fourth Proportional to 3,129.64, 4,686.97 and 1,739.52

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Solution

The fourth proportional to 3,129.64, 4,686.97 and 1,739.52 is: 2,605.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.64 : 4,686.97 = 1,739.52 : x
  2. Step 2: Convert to fraction form
    3,129.64/4,686.97 = 1,739.52/x
  3. Step 3: Cross multiply
    3,129.64x = 4,686.97 × 1,739.52
  4. Step 4: Simplify right side
    3,129.64x = 8,153,078.05
  5. Step 5: Solve for x
    x = 8,153,078.05/3,129.64
  6. Step 6: Final answer
    x = 2,605.12

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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.