Home / 2,770.38-3,823.08-1,511.42

Finding the Fourth Proportional to 2,770.38, 3,823.08 and 1,511.42

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Solution

The fourth proportional to 2,770.38, 3,823.08 and 1,511.42 is: 2,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,770.38 : 3,823.08 = 1,511.42 : x
  2. Step 2: Convert to fraction form
    2,770.38/3,823.08 = 1,511.42/x
  3. Step 3: Cross multiply
    2,770.38x = 3,823.08 × 1,511.42
  4. Step 4: Simplify right side
    2,770.38x = 5,778,279.57
  5. Step 5: Solve for x
    x = 5,778,279.57/2,770.38
  6. Step 6: Final answer
    x = 2,085.74

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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.