Home / 1,421.75-2,133.61-600.11

Finding the Fourth Proportional to 1,421.75, 2,133.61 and 600.11

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Solution

The fourth proportional to 1,421.75, 2,133.61 and 600.11 is: 900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421.75 : 2,133.61 = 600.11 : x
  2. Step 2: Convert to fraction form
    1,421.75/2,133.61 = 600.11/x
  3. Step 3: Cross multiply
    1,421.75x = 2,133.61 × 600.11
  4. Step 4: Simplify right side
    1,421.75x = 1,280,396.53
  5. Step 5: Solve for x
    x = 1,280,396.53/1,421.75
  6. Step 6: Final answer
    x = 900.58

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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.