Home / 2,208.48-3,311.28-1,235.31

Finding the Fourth Proportional to 2,208.48, 3,311.28 and 1,235.31

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Solution

The fourth proportional to 2,208.48, 3,311.28 and 1,235.31 is: 1,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.48 : 3,311.28 = 1,235.31 : x
  2. Step 2: Convert to fraction form
    2,208.48/3,311.28 = 1,235.31/x
  3. Step 3: Cross multiply
    2,208.48x = 3,311.28 × 1,235.31
  4. Step 4: Simplify right side
    2,208.48x = 4,090,457.30
  5. Step 5: Solve for x
    x = 4,090,457.30/2,208.48
  6. Step 6: Final answer
    x = 1,852.16

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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.