Home / 1,236.02-1,854.16-403.12

Finding the Fourth Proportional to 1,236.02, 1,854.16 and 403.12

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Solution

The fourth proportional to 1,236.02, 1,854.16 and 403.12 is: 604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236.02 : 1,854.16 = 403.12 : x
  2. Step 2: Convert to fraction form
    1,236.02/1,854.16 = 403.12/x
  3. Step 3: Cross multiply
    1,236.02x = 1,854.16 × 403.12
  4. Step 4: Simplify right side
    1,236.02x = 747,448.98
  5. Step 5: Solve for x
    x = 747,448.98/1,236.02
  6. Step 6: Final answer
    x = 604.72

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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.