Home / 1,679.14-2,518.66-524.86

Finding the Fourth Proportional to 1,679.14, 2,518.66 and 524.86

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Solution

The fourth proportional to 1,679.14, 2,518.66 and 524.86 is: 787.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.14 : 2,518.66 = 524.86 : x
  2. Step 2: Convert to fraction form
    1,679.14/2,518.66 = 524.86/x
  3. Step 3: Cross multiply
    1,679.14x = 2,518.66 × 524.86
  4. Step 4: Simplify right side
    1,679.14x = 1,321,943.89
  5. Step 5: Solve for x
    x = 1,321,943.89/1,679.14
  6. Step 6: Final answer
    x = 787.27

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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.