Home / 5,418.65-8,126.55-1,522.14

Finding the Fourth Proportional to 5,418.65, 8,126.55 and 1,522.14

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Solution

The fourth proportional to 5,418.65, 8,126.55 and 1,522.14 is: 2,282.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.65 : 8,126.55 = 1,522.14 : x
  2. Step 2: Convert to fraction form
    5,418.65/8,126.55 = 1,522.14/x
  3. Step 3: Cross multiply
    5,418.65x = 8,126.55 × 1,522.14
  4. Step 4: Simplify right side
    5,418.65x = 12,369,746.82
  5. Step 5: Solve for x
    x = 12,369,746.82/5,418.65
  6. Step 6: Final answer
    x = 2,282.81

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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.