Home / 2,135.52-2,947.08-1,191.26

Finding the Fourth Proportional to 2,135.52, 2,947.08 and 1,191.26

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Solution

The fourth proportional to 2,135.52, 2,947.08 and 1,191.26 is: 1,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135.52 : 2,947.08 = 1,191.26 : x
  2. Step 2: Convert to fraction form
    2,135.52/2,947.08 = 1,191.26/x
  3. Step 3: Cross multiply
    2,135.52x = 2,947.08 × 1,191.26
  4. Step 4: Simplify right side
    2,135.52x = 3,510,738.52
  5. Step 5: Solve for x
    x = 3,510,738.52/2,135.52
  6. Step 6: Final answer
    x = 1,643.97

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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.