Home / 1,523.32-2,100.48-1,081.36

Finding the Fourth Proportional to 1,523.32, 2,100.48 and 1,081.36

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Solution

The fourth proportional to 1,523.32, 2,100.48 and 1,081.36 is: 1,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,523.32 : 2,100.48 = 1,081.36 : x
  2. Step 2: Convert to fraction form
    1,523.32/2,100.48 = 1,081.36/x
  3. Step 3: Cross multiply
    1,523.32x = 2,100.48 × 1,081.36
  4. Step 4: Simplify right side
    1,523.32x = 2,271,375.05
  5. Step 5: Solve for x
    x = 2,271,375.05/1,523.32
  6. Step 6: Final answer
    x = 1,491.07

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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.