Home / 1,216.10-1,824.16-350.40

Finding the Fourth Proportional to 1,216.10, 1,824.16 and 350.40

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Solution

The fourth proportional to 1,216.10, 1,824.16 and 350.40 is: 525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216.10 : 1,824.16 = 350.40 : x
  2. Step 2: Convert to fraction form
    1,216.10/1,824.16 = 350.40/x
  3. Step 3: Cross multiply
    1,216.10x = 1,824.16 × 350.40
  4. Step 4: Simplify right side
    1,216.10x = 639,185.66
  5. Step 5: Solve for x
    x = 639,185.66/1,216.10
  6. Step 6: Final answer
    x = 525.60

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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.