Home / 1,581.08-2,172.39-1,479.96

Finding the Fourth Proportional to 1,581.08, 2,172.39 and 1,479.96

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Solution

The fourth proportional to 1,581.08, 2,172.39 and 1,479.96 is: 2,033.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.08 : 2,172.39 = 1,479.96 : x
  2. Step 2: Convert to fraction form
    1,581.08/2,172.39 = 1,479.96/x
  3. Step 3: Cross multiply
    1,581.08x = 2,172.39 × 1,479.96
  4. Step 4: Simplify right side
    1,581.08x = 3,215,050.30
  5. Step 5: Solve for x
    x = 3,215,050.30/1,581.08
  6. Step 6: Final answer
    x = 2,033.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.