Home / 2,152.36-3,226.11-981.10

Finding the Fourth Proportional to 2,152.36, 3,226.11 and 981.10

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Solution

The fourth proportional to 2,152.36, 3,226.11 and 981.10 is: 1,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.36 : 3,226.11 = 981.10 : x
  2. Step 2: Convert to fraction form
    2,152.36/3,226.11 = 981.10/x
  3. Step 3: Cross multiply
    2,152.36x = 3,226.11 × 981.10
  4. Step 4: Simplify right side
    2,152.36x = 3,165,136.52
  5. Step 5: Solve for x
    x = 3,165,136.52/2,152.36
  6. Step 6: Final answer
    x = 1,470.54

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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.