Home / 6,526.85-9,788.20-2,143.28

Finding the Fourth Proportional to 6,526.85, 9,788.20 and 2,143.28

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Solution

The fourth proportional to 6,526.85, 9,788.20 and 2,143.28 is: 3,214.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,526.85 : 9,788.20 = 2,143.28 : x
  2. Step 2: Convert to fraction form
    6,526.85/9,788.20 = 2,143.28/x
  3. Step 3: Cross multiply
    6,526.85x = 9,788.20 × 2,143.28
  4. Step 4: Simplify right side
    6,526.85x = 20,978,872.41
  5. Step 5: Solve for x
    x = 20,978,872.41/6,526.85
  6. Step 6: Final answer
    x = 3,214.24

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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.