Home / 2,345.90-3,518.85-1,906.62

Finding the Fourth Proportional to 2,345.90, 3,518.85 and 1,906.62

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Solution

The fourth proportional to 2,345.90, 3,518.85 and 1,906.62 is: 2,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,345.90 : 3,518.85 = 1,906.62 : x
  2. Step 2: Convert to fraction form
    2,345.90/3,518.85 = 1,906.62/x
  3. Step 3: Cross multiply
    2,345.90x = 3,518.85 × 1,906.62
  4. Step 4: Simplify right side
    2,345.90x = 6,709,106.73
  5. Step 5: Solve for x
    x = 6,709,106.73/2,345.90
  6. Step 6: Final answer
    x = 2,859.93

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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.