Home / 2,209.88-3,312.97-1,039.30

Finding the Fourth Proportional to 2,209.88, 3,312.97 and 1,039.30

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Solution

The fourth proportional to 2,209.88, 3,312.97 and 1,039.30 is: 1,558.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.88 : 3,312.97 = 1,039.30 : x
  2. Step 2: Convert to fraction form
    2,209.88/3,312.97 = 1,039.30/x
  3. Step 3: Cross multiply
    2,209.88x = 3,312.97 × 1,039.30
  4. Step 4: Simplify right side
    2,209.88x = 3,443,158.84
  5. Step 5: Solve for x
    x = 3,443,158.84/2,209.88
  6. Step 6: Final answer
    x = 1,558.07

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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.