Home / 5,681.16-8,523.18-2,218.68

Finding the Fourth Proportional to 5,681.16, 8,523.18 and 2,218.68

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Solution

The fourth proportional to 5,681.16, 8,523.18 and 2,218.68 is: 3,328.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,681.16 : 8,523.18 = 2,218.68 : x
  2. Step 2: Convert to fraction form
    5,681.16/8,523.18 = 2,218.68/x
  3. Step 3: Cross multiply
    5,681.16x = 8,523.18 × 2,218.68
  4. Step 4: Simplify right side
    5,681.16x = 18,910,209.00
  5. Step 5: Solve for x
    x = 18,910,209.00/5,681.16
  6. Step 6: Final answer
    x = 3,328.58

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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.