Home / 2,465.90-3,695.73-1,078.87

Finding the Fourth Proportional to 2,465.90, 3,695.73 and 1,078.87

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Solution

The fourth proportional to 2,465.90, 3,695.73 and 1,078.87 is: 1,616.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,465.90 : 3,695.73 = 1,078.87 : x
  2. Step 2: Convert to fraction form
    2,465.90/3,695.73 = 1,078.87/x
  3. Step 3: Cross multiply
    2,465.90x = 3,695.73 × 1,078.87
  4. Step 4: Simplify right side
    2,465.90x = 3,987,193.75
  5. Step 5: Solve for x
    x = 3,987,193.75/2,465.90
  6. Step 6: Final answer
    x = 1,616.93

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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.