Home / 1,224.10-1,836.30-402.46

Finding the Fourth Proportional to 1,224.10, 1,836.30 and 402.46

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Solution

The fourth proportional to 1,224.10, 1,836.30 and 402.46 is: 603.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224.10 : 1,836.30 = 402.46 : x
  2. Step 2: Convert to fraction form
    1,224.10/1,836.30 = 402.46/x
  3. Step 3: Cross multiply
    1,224.10x = 1,836.30 × 402.46
  4. Step 4: Simplify right side
    1,224.10x = 739,032.71
  5. Step 5: Solve for x
    x = 739,032.71/1,224.10
  6. Step 6: Final answer
    x = 603.74

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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.