Home / 2,187.88-3,264.04-2,009.48

Finding the Fourth Proportional to 2,187.88, 3,264.04 and 2,009.48

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Solution

The fourth proportional to 2,187.88, 3,264.04 and 2,009.48 is: 2,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.88 : 3,264.04 = 2,009.48 : x
  2. Step 2: Convert to fraction form
    2,187.88/3,264.04 = 2,009.48/x
  3. Step 3: Cross multiply
    2,187.88x = 3,264.04 × 2,009.48
  4. Step 4: Simplify right side
    2,187.88x = 6,559,023.10
  5. Step 5: Solve for x
    x = 6,559,023.10/2,187.88
  6. Step 6: Final answer
    x = 2,997.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.