Home / 1,218.86-1,827.75-1,168.46

Finding the Fourth Proportional to 1,218.86, 1,827.75 and 1,168.46

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Solution

The fourth proportional to 1,218.86, 1,827.75 and 1,168.46 is: 1,752.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.86 : 1,827.75 = 1,168.46 : x
  2. Step 2: Convert to fraction form
    1,218.86/1,827.75 = 1,168.46/x
  3. Step 3: Cross multiply
    1,218.86x = 1,827.75 × 1,168.46
  4. Step 4: Simplify right side
    1,218.86x = 2,135,652.77
  5. Step 5: Solve for x
    x = 2,135,652.77/1,218.86
  6. Step 6: Final answer
    x = 1,752.17

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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.