Home / 1,225.85-1,836.46-609.22

Finding the Fourth Proportional to 1,225.85, 1,836.46 and 609.22

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Solution

The fourth proportional to 1,225.85, 1,836.46 and 609.22 is: 912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225.85 : 1,836.46 = 609.22 : x
  2. Step 2: Convert to fraction form
    1,225.85/1,836.46 = 609.22/x
  3. Step 3: Cross multiply
    1,225.85x = 1,836.46 × 609.22
  4. Step 4: Simplify right side
    1,225.85x = 1,118,808.16
  5. Step 5: Solve for x
    x = 1,118,808.16/1,225.85
  6. Step 6: Final answer
    x = 912.68

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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.