Home / 2,511.45-3,465.99-1,392.57

Finding the Fourth Proportional to 2,511.45, 3,465.99 and 1,392.57

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Solution

The fourth proportional to 2,511.45, 3,465.99 and 1,392.57 is: 1,921.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.45 : 3,465.99 = 1,392.57 : x
  2. Step 2: Convert to fraction form
    2,511.45/3,465.99 = 1,392.57/x
  3. Step 3: Cross multiply
    2,511.45x = 3,465.99 × 1,392.57
  4. Step 4: Simplify right side
    2,511.45x = 4,826,633.69
  5. Step 5: Solve for x
    x = 4,826,633.69/2,511.45
  6. Step 6: Final answer
    x = 1,921.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.