Home / 3,134.86-4,702.61-1,055.09

Finding the Fourth Proportional to 3,134.86, 4,702.61 and 1,055.09

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Solution

The fourth proportional to 3,134.86, 4,702.61 and 1,055.09 is: 1,582.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.86 : 4,702.61 = 1,055.09 : x
  2. Step 2: Convert to fraction form
    3,134.86/4,702.61 = 1,055.09/x
  3. Step 3: Cross multiply
    3,134.86x = 4,702.61 × 1,055.09
  4. Step 4: Simplify right side
    3,134.86x = 4,961,691.18
  5. Step 5: Solve for x
    x = 4,961,691.18/3,134.86
  6. Step 6: Final answer
    x = 1,582.75

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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.