Home / 1,943.52-2,910.60-1,212.18

Finding the Fourth Proportional to 1,943.52, 2,910.60 and 1,212.18

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Solution

The fourth proportional to 1,943.52, 2,910.60 and 1,212.18 is: 1,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.52 : 2,910.60 = 1,212.18 : x
  2. Step 2: Convert to fraction form
    1,943.52/2,910.60 = 1,212.18/x
  3. Step 3: Cross multiply
    1,943.52x = 2,910.60 × 1,212.18
  4. Step 4: Simplify right side
    1,943.52x = 3,528,171.11
  5. Step 5: Solve for x
    x = 3,528,171.11/1,943.52
  6. Step 6: Final answer
    x = 1,815.35

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1.5x scale

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.