Home / 5,619.89-8,424.88-2,154.71

Finding the Fourth Proportional to 5,619.89, 8,424.88 and 2,154.71

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Solution

The fourth proportional to 5,619.89, 8,424.88 and 2,154.71 is: 3,230.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,619.89 : 8,424.88 = 2,154.71 : x
  2. Step 2: Convert to fraction form
    5,619.89/8,424.88 = 2,154.71/x
  3. Step 3: Cross multiply
    5,619.89x = 8,424.88 × 2,154.71
  4. Step 4: Simplify right side
    5,619.89x = 18,153,173.18
  5. Step 5: Solve for x
    x = 18,153,173.18/5,619.89
  6. Step 6: Final answer
    x = 3,230.17

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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.