Home / 3,887.76-5,365.68-2,316.72

Finding the Fourth Proportional to 3,887.76, 5,365.68 and 2,316.72

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Solution

The fourth proportional to 3,887.76, 5,365.68 and 2,316.72 is: 3,197.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,887.76 : 5,365.68 = 2,316.72 : x
  2. Step 2: Convert to fraction form
    3,887.76/5,365.68 = 2,316.72/x
  3. Step 3: Cross multiply
    3,887.76x = 5,365.68 × 2,316.72
  4. Step 4: Simplify right side
    3,887.76x = 12,430,778.17
  5. Step 5: Solve for x
    x = 12,430,778.17/3,887.76
  6. Step 6: Final answer
    x = 3,197.41

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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.