Home / 1,218.96-1,827.12-525.44

Finding the Fourth Proportional to 1,218.96, 1,827.12 and 525.44

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Solution

The fourth proportional to 1,218.96, 1,827.12 and 525.44 is: 787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218.96 : 1,827.12 = 525.44 : x
  2. Step 2: Convert to fraction form
    1,218.96/1,827.12 = 525.44/x
  3. Step 3: Cross multiply
    1,218.96x = 1,827.12 × 525.44
  4. Step 4: Simplify right side
    1,218.96x = 960,041.93
  5. Step 5: Solve for x
    x = 960,041.93/1,218.96
  6. Step 6: Final answer
    x = 787.59

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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.