Home / 2,780.38-3,837.27-1,601.45

Finding the Fourth Proportional to 2,780.38, 3,837.27 and 1,601.45

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Solution

The fourth proportional to 2,780.38, 3,837.27 and 1,601.45 is: 2,210.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.38 : 3,837.27 = 1,601.45 : x
  2. Step 2: Convert to fraction form
    2,780.38/3,837.27 = 1,601.45/x
  3. Step 3: Cross multiply
    2,780.38x = 3,837.27 × 1,601.45
  4. Step 4: Simplify right side
    2,780.38x = 6,145,186.46
  5. Step 5: Solve for x
    x = 6,145,186.46/2,780.38
  6. Step 6: Final answer
    x = 2,210.20

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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.