Home / 5,582.13-8,368.21-2,121.81

Finding the Fourth Proportional to 5,582.13, 8,368.21 and 2,121.81

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Solution

The fourth proportional to 5,582.13, 8,368.21 and 2,121.81 is: 3,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.13 : 8,368.21 = 2,121.81 : x
  2. Step 2: Convert to fraction form
    5,582.13/8,368.21 = 2,121.81/x
  3. Step 3: Cross multiply
    5,582.13x = 8,368.21 × 2,121.81
  4. Step 4: Simplify right side
    5,582.13x = 17,755,751.66
  5. Step 5: Solve for x
    x = 17,755,751.66/5,582.13
  6. Step 6: Final answer
    x = 3,180.82

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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.