Home / 2,725.22-3,759.69-1,897.70

Finding the Fourth Proportional to 2,725.22, 3,759.69 and 1,897.70

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Solution

The fourth proportional to 2,725.22, 3,759.69 and 1,897.70 is: 2,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,725.22 : 3,759.69 = 1,897.70 : x
  2. Step 2: Convert to fraction form
    2,725.22/3,759.69 = 1,897.70/x
  3. Step 3: Cross multiply
    2,725.22x = 3,759.69 × 1,897.70
  4. Step 4: Simplify right side
    2,725.22x = 7,134,763.71
  5. Step 5: Solve for x
    x = 7,134,763.71/2,725.22
  6. Step 6: Final answer
    x = 2,618.05

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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.