Home / 6,579.28-9,868.89-2,140.63

Finding the Fourth Proportional to 6,579.28, 9,868.89 and 2,140.63

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Solution

The fourth proportional to 6,579.28, 9,868.89 and 2,140.63 is: 3,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,579.28 : 9,868.89 = 2,140.63 : x
  2. Step 2: Convert to fraction form
    6,579.28/9,868.89 = 2,140.63/x
  3. Step 3: Cross multiply
    6,579.28x = 9,868.89 × 2,140.63
  4. Step 4: Simplify right side
    6,579.28x = 21,125,613.31
  5. Step 5: Solve for x
    x = 21,125,613.31/6,579.28
  6. Step 6: Final answer
    x = 3,210.93

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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.