Home / 1,910.57-2,636.18-1,248.39

Finding the Fourth Proportional to 1,910.57, 2,636.18 and 1,248.39

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Solution

The fourth proportional to 1,910.57, 2,636.18 and 1,248.39 is: 1,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,910.57 : 2,636.18 = 1,248.39 : x
  2. Step 2: Convert to fraction form
    1,910.57/2,636.18 = 1,248.39/x
  3. Step 3: Cross multiply
    1,910.57x = 2,636.18 × 1,248.39
  4. Step 4: Simplify right side
    1,910.57x = 3,290,979.19
  5. Step 5: Solve for x
    x = 3,290,979.19/1,910.57
  6. Step 6: Final answer
    x = 1,722.52

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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.