Home / 5,913.78-8,867.61-4,800.21

Finding the Fourth Proportional to 5,913.78, 8,867.61 and 4,800.21

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Solution

The fourth proportional to 5,913.78, 8,867.61 and 4,800.21 is: 7,197.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,913.78 : 8,867.61 = 4,800.21 : x
  2. Step 2: Convert to fraction form
    5,913.78/8,867.61 = 4,800.21/x
  3. Step 3: Cross multiply
    5,913.78x = 8,867.61 × 4,800.21
  4. Step 4: Simplify right side
    5,913.78x = 42,566,390.20
  5. Step 5: Solve for x
    x = 42,566,390.20/5,913.78
  6. Step 6: Final answer
    x = 7,197.83

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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.