Home / 2,768.32-3,821.28-1,837.12

Finding the Fourth Proportional to 2,768.32, 3,821.28 and 1,837.12

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Solution

The fourth proportional to 2,768.32, 3,821.28 and 1,837.12 is: 2,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,768.32 : 3,821.28 = 1,837.12 : x
  2. Step 2: Convert to fraction form
    2,768.32/3,821.28 = 1,837.12/x
  3. Step 3: Cross multiply
    2,768.32x = 3,821.28 × 1,837.12
  4. Step 4: Simplify right side
    2,768.32x = 7,020,149.91
  5. Step 5: Solve for x
    x = 7,020,149.91/2,768.32
  6. Step 6: Final answer
    x = 2,535.89

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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.