Home / 5,187.52-7,158.79-2,829.71

Finding the Fourth Proportional to 5,187.52, 7,158.79 and 2,829.71

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Solution

The fourth proportional to 5,187.52, 7,158.79 and 2,829.71 is: 3,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,187.52 : 7,158.79 = 2,829.71 : x
  2. Step 2: Convert to fraction form
    5,187.52/7,158.79 = 2,829.71/x
  3. Step 3: Cross multiply
    5,187.52x = 7,158.79 × 2,829.71
  4. Step 4: Simplify right side
    5,187.52x = 20,257,270.93
  5. Step 5: Solve for x
    x = 20,257,270.93/5,187.52
  6. Step 6: Final answer
    x = 3,905.00

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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.