Home / 1,223.22-1,835.85-607.12

Finding the Fourth Proportional to 1,223.22, 1,835.85 and 607.12

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Solution

The fourth proportional to 1,223.22, 1,835.85 and 607.12 is: 911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.22 : 1,835.85 = 607.12 : x
  2. Step 2: Convert to fraction form
    1,223.22/1,835.85 = 607.12/x
  3. Step 3: Cross multiply
    1,223.22x = 1,835.85 × 607.12
  4. Step 4: Simplify right side
    1,223.22x = 1,114,581.25
  5. Step 5: Solve for x
    x = 1,114,581.25/1,223.22
  6. Step 6: Final answer
    x = 911.19

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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.