Home / 5,686.93-8,530.40-2,221.75

Finding the Fourth Proportional to 5,686.93, 8,530.40 and 2,221.75

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Solution

The fourth proportional to 5,686.93, 8,530.40 and 2,221.75 is: 3,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,686.93 : 8,530.40 = 2,221.75 : x
  2. Step 2: Convert to fraction form
    5,686.93/8,530.40 = 2,221.75/x
  3. Step 3: Cross multiply
    5,686.93x = 8,530.40 × 2,221.75
  4. Step 4: Simplify right side
    5,686.93x = 18,952,405.09
  5. Step 5: Solve for x
    x = 18,952,405.09/5,686.93
  6. Step 6: Final answer
    x = 3,332.63

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Double scale
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Similar ratio
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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.