Home / 2,878.38-4,317.57-1,147.02

Finding the Fourth Proportional to 2,878.38, 4,317.57 and 1,147.02

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Solution

The fourth proportional to 2,878.38, 4,317.57 and 1,147.02 is: 1,720.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878.38 : 4,317.57 = 1,147.02 : x
  2. Step 2: Convert to fraction form
    2,878.38/4,317.57 = 1,147.02/x
  3. Step 3: Cross multiply
    2,878.38x = 4,317.57 × 1,147.02
  4. Step 4: Simplify right side
    2,878.38x = 4,952,339.14
  5. Step 5: Solve for x
    x = 4,952,339.14/2,878.38
  6. Step 6: Final answer
    x = 1,720.53

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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.