Home / 4,881.36-7,321.87-1,371.40

Finding the Fourth Proportional to 4,881.36, 7,321.87 and 1,371.40

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Solution

The fourth proportional to 4,881.36, 7,321.87 and 1,371.40 is: 2,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,881.36 : 7,321.87 = 1,371.40 : x
  2. Step 2: Convert to fraction form
    4,881.36/7,321.87 = 1,371.40/x
  3. Step 3: Cross multiply
    4,881.36x = 7,321.87 × 1,371.40
  4. Step 4: Simplify right side
    4,881.36x = 10,041,190.78
  5. Step 5: Solve for x
    x = 10,041,190.78/4,881.36
  6. Step 6: Final answer
    x = 2,057.05

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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.