Home / 2,766.21-3,817.13-1,587.03

Finding the Fourth Proportional to 2,766.21, 3,817.13 and 1,587.03

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Solution

The fourth proportional to 2,766.21, 3,817.13 and 1,587.03 is: 2,189.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.21 : 3,817.13 = 1,587.03 : x
  2. Step 2: Convert to fraction form
    2,766.21/3,817.13 = 1,587.03/x
  3. Step 3: Cross multiply
    2,766.21x = 3,817.13 × 1,587.03
  4. Step 4: Simplify right side
    2,766.21x = 6,057,899.82
  5. Step 5: Solve for x
    x = 6,057,899.82/2,766.21
  6. Step 6: Final answer
    x = 2,189.96

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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.