Home / 1,223.24-1,688.60-894.08

Finding the Fourth Proportional to 1,223.24, 1,688.60 and 894.08

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Solution

The fourth proportional to 1,223.24, 1,688.60 and 894.08 is: 1,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.24 : 1,688.60 = 894.08 : x
  2. Step 2: Convert to fraction form
    1,223.24/1,688.60 = 894.08/x
  3. Step 3: Cross multiply
    1,223.24x = 1,688.60 × 894.08
  4. Step 4: Simplify right side
    1,223.24x = 1,509,743.49
  5. Step 5: Solve for x
    x = 1,509,743.49/1,223.24
  6. Step 6: Final answer
    x = 1,234.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.