Home / 2,979.47-4,468.57-1,129.93

Finding the Fourth Proportional to 2,979.47, 4,468.57 and 1,129.93

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Solution

The fourth proportional to 2,979.47, 4,468.57 and 1,129.93 is: 1,694.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.47 : 4,468.57 = 1,129.93 : x
  2. Step 2: Convert to fraction form
    2,979.47/4,468.57 = 1,129.93/x
  3. Step 3: Cross multiply
    2,979.47x = 4,468.57 × 1,129.93
  4. Step 4: Simplify right side
    2,979.47x = 5,049,182.44
  5. Step 5: Solve for x
    x = 5,049,182.44/2,979.47
  6. Step 6: Final answer
    x = 1,694.66

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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.