Home / 1,224.34-1,835.81-402.39

Finding the Fourth Proportional to 1,224.34, 1,835.81 and 402.39

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Solution

The fourth proportional to 1,224.34, 1,835.81 and 402.39 is: 603.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.34 : 1,835.81 = 402.39 : x
  2. Step 2: Convert to fraction form
    1,224.34/1,835.81 = 402.39/x
  3. Step 3: Cross multiply
    1,224.34x = 1,835.81 × 402.39
  4. Step 4: Simplify right side
    1,224.34x = 738,708.00
  5. Step 5: Solve for x
    x = 738,708.00/1,224.34
  6. Step 6: Final answer
    x = 603.35

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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.