Home / 3,151.74-4,727.34-1,918.83

Finding the Fourth Proportional to 3,151.74, 4,727.34 and 1,918.83

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Solution

The fourth proportional to 3,151.74, 4,727.34 and 1,918.83 is: 2,878.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.74 : 4,727.34 = 1,918.83 : x
  2. Step 2: Convert to fraction form
    3,151.74/4,727.34 = 1,918.83/x
  3. Step 3: Cross multiply
    3,151.74x = 4,727.34 × 1,918.83
  4. Step 4: Simplify right side
    3,151.74x = 9,070,961.81
  5. Step 5: Solve for x
    x = 9,070,961.81/3,151.74
  6. Step 6: Final answer
    x = 2,878.08

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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.