Home / 2,511.52-3,465.91-1,392.48

Finding the Fourth Proportional to 2,511.52, 3,465.91 and 1,392.48

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Solution

The fourth proportional to 2,511.52, 3,465.91 and 1,392.48 is: 1,921.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.52 : 3,465.91 = 1,392.48 : x
  2. Step 2: Convert to fraction form
    2,511.52/3,465.91 = 1,392.48/x
  3. Step 3: Cross multiply
    2,511.52x = 3,465.91 × 1,392.48
  4. Step 4: Simplify right side
    2,511.52x = 4,826,212.10
  5. Step 5: Solve for x
    x = 4,826,212.10/2,511.52
  6. Step 6: Final answer
    x = 1,921.63

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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.