Home / 2,817.30-3,886.29-1,767.54

Finding the Fourth Proportional to 2,817.30, 3,886.29 and 1,767.54

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Solution

The fourth proportional to 2,817.30, 3,886.29 and 1,767.54 is: 2,438.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.30 : 3,886.29 = 1,767.54 : x
  2. Step 2: Convert to fraction form
    2,817.30/3,886.29 = 1,767.54/x
  3. Step 3: Cross multiply
    2,817.30x = 3,886.29 × 1,767.54
  4. Step 4: Simplify right side
    2,817.30x = 6,869,173.03
  5. Step 5: Solve for x
    x = 6,869,173.03/2,817.30
  6. Step 6: Final answer
    x = 2,438.21

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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.