Home / 3,917.15-5,878.65-1,577.18

Finding the Fourth Proportional to 3,917.15, 5,878.65 and 1,577.18

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Solution

The fourth proportional to 3,917.15, 5,878.65 and 1,577.18 is: 2,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.15 : 5,878.65 = 1,577.18 : x
  2. Step 2: Convert to fraction form
    3,917.15/5,878.65 = 1,577.18/x
  3. Step 3: Cross multiply
    3,917.15x = 5,878.65 × 1,577.18
  4. Step 4: Simplify right side
    3,917.15x = 9,271,689.21
  5. Step 5: Solve for x
    x = 9,271,689.21/3,917.15
  6. Step 6: Final answer
    x = 2,366.95

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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.