Home / 2,281.40-3,421.79-965.67

Finding the Fourth Proportional to 2,281.40, 3,421.79 and 965.67

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Solution

The fourth proportional to 2,281.40, 3,421.79 and 965.67 is: 1,448.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,281.40 : 3,421.79 = 965.67 : x
  2. Step 2: Convert to fraction form
    2,281.40/3,421.79 = 965.67/x
  3. Step 3: Cross multiply
    2,281.40x = 3,421.79 × 965.67
  4. Step 4: Simplify right side
    2,281.40x = 3,304,319.95
  5. Step 5: Solve for x
    x = 3,304,319.95/2,281.40
  6. Step 6: Final answer
    x = 1,448.37

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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.