Home / 5,308.89-7,964.30-2,187.17

Finding the Fourth Proportional to 5,308.89, 7,964.30 and 2,187.17

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Solution

The fourth proportional to 5,308.89, 7,964.30 and 2,187.17 is: 3,281.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.89 : 7,964.30 = 2,187.17 : x
  2. Step 2: Convert to fraction form
    5,308.89/7,964.30 = 2,187.17/x
  3. Step 3: Cross multiply
    5,308.89x = 7,964.30 × 2,187.17
  4. Step 4: Simplify right side
    5,308.89x = 17,419,239.58
  5. Step 5: Solve for x
    x = 17,419,239.58/5,308.89
  6. Step 6: Final answer
    x = 3,281.14

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1.5x scale

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.