Home / 1,444.21-2,166.31-578.52

Finding the Fourth Proportional to 1,444.21, 2,166.31 and 578.52

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Solution

The fourth proportional to 1,444.21, 2,166.31 and 578.52 is: 867.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.21 : 2,166.31 = 578.52 : x
  2. Step 2: Convert to fraction form
    1,444.21/2,166.31 = 578.52/x
  3. Step 3: Cross multiply
    1,444.21x = 2,166.31 × 578.52
  4. Step 4: Simplify right side
    1,444.21x = 1,253,253.66
  5. Step 5: Solve for x
    x = 1,253,253.66/1,444.21
  6. Step 6: Final answer
    x = 867.78

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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.