Home / 5,686.83-8,530.14-1,791.21

Finding the Fourth Proportional to 5,686.83, 8,530.14 and 1,791.21

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Solution

The fourth proportional to 5,686.83, 8,530.14 and 1,791.21 is: 2,686.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.83 : 8,530.14 = 1,791.21 : x
  2. Step 2: Convert to fraction form
    5,686.83/8,530.14 = 1,791.21/x
  3. Step 3: Cross multiply
    5,686.83x = 8,530.14 × 1,791.21
  4. Step 4: Simplify right side
    5,686.83x = 15,279,272.07
  5. Step 5: Solve for x
    x = 15,279,272.07/5,686.83
  6. Step 6: Final answer
    x = 2,686.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.