Home / 5,078.26-7,008.27-2,840.13

Finding the Fourth Proportional to 5,078.26, 7,008.27 and 2,840.13

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Solution

The fourth proportional to 5,078.26, 7,008.27 and 2,840.13 is: 3,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,078.26 : 7,008.27 = 2,840.13 : x
  2. Step 2: Convert to fraction form
    5,078.26/7,008.27 = 2,840.13/x
  3. Step 3: Cross multiply
    5,078.26x = 7,008.27 × 2,840.13
  4. Step 4: Simplify right side
    5,078.26x = 19,904,403.20
  5. Step 5: Solve for x
    x = 19,904,403.20/5,078.26
  6. Step 6: Final answer
    x = 3,919.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.