Home / 5,390.62-8,089.01-2,102.95

Finding the Fourth Proportional to 5,390.62, 8,089.01 and 2,102.95

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Solution

The fourth proportional to 5,390.62, 8,089.01 and 2,102.95 is: 3,155.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.62 : 8,089.01 = 2,102.95 : x
  2. Step 2: Convert to fraction form
    5,390.62/8,089.01 = 2,102.95/x
  3. Step 3: Cross multiply
    5,390.62x = 8,089.01 × 2,102.95
  4. Step 4: Simplify right side
    5,390.62x = 17,010,802.89
  5. Step 5: Solve for x
    x = 17,010,802.89/5,390.62
  6. Step 6: Final answer
    x = 3,155.63

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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.