Home / 2,152.32-3,231.36-1,276.44

Finding the Fourth Proportional to 2,152.32, 3,231.36 and 1,276.44

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Solution

The fourth proportional to 2,152.32, 3,231.36 and 1,276.44 is: 1,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.32 : 3,231.36 = 1,276.44 : x
  2. Step 2: Convert to fraction form
    2,152.32/3,231.36 = 1,276.44/x
  3. Step 3: Cross multiply
    2,152.32x = 3,231.36 × 1,276.44
  4. Step 4: Simplify right side
    2,152.32x = 4,124,637.16
  5. Step 5: Solve for x
    x = 4,124,637.16/2,152.32
  6. Step 6: Final answer
    x = 1,916.37

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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.