Home / 2,511.11-3,465.47-1,392.17

Finding the Fourth Proportional to 2,511.11, 3,465.47 and 1,392.17

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Solution

The fourth proportional to 2,511.11, 3,465.47 and 1,392.17 is: 1,921.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,511.11 : 3,465.47 = 1,392.17 : x
  2. Step 2: Convert to fraction form
    2,511.11/3,465.47 = 1,392.17/x
  3. Step 3: Cross multiply
    2,511.11x = 3,465.47 × 1,392.17
  4. Step 4: Simplify right side
    2,511.11x = 4,824,523.37
  5. Step 5: Solve for x
    x = 4,824,523.37/2,511.11
  6. Step 6: Final answer
    x = 1,921.27

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1.5x scale

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.