Home / 5,142.88-7,097.12-2,904.86

Finding the Fourth Proportional to 5,142.88, 7,097.12 and 2,904.86

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Solution

The fourth proportional to 5,142.88, 7,097.12 and 2,904.86 is: 4,008.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.88 : 7,097.12 = 2,904.86 : x
  2. Step 2: Convert to fraction form
    5,142.88/7,097.12 = 2,904.86/x
  3. Step 3: Cross multiply
    5,142.88x = 7,097.12 × 2,904.86
  4. Step 4: Simplify right side
    5,142.88x = 20,616,140.00
  5. Step 5: Solve for x
    x = 20,616,140.00/5,142.88
  6. Step 6: Final answer
    x = 4,008.68

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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.