Home / 5,122.62-7,677.72-2,345.40

Finding the Fourth Proportional to 5,122.62, 7,677.72 and 2,345.40

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Solution

The fourth proportional to 5,122.62, 7,677.72 and 2,345.40 is: 3,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.62 : 7,677.72 = 2,345.40 : x
  2. Step 2: Convert to fraction form
    5,122.62/7,677.72 = 2,345.40/x
  3. Step 3: Cross multiply
    5,122.62x = 7,677.72 × 2,345.40
  4. Step 4: Simplify right side
    5,122.62x = 18,007,324.49
  5. Step 5: Solve for x
    x = 18,007,324.49/5,122.62
  6. Step 6: Final answer
    x = 3,515.26

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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.