Home / 6,519.63-9,781.26-2,140.17

Finding the Fourth Proportional to 6,519.63, 9,781.26 and 2,140.17

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Solution

The fourth proportional to 6,519.63, 9,781.26 and 2,140.17 is: 3,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,519.63 : 9,781.26 = 2,140.17 : x
  2. Step 2: Convert to fraction form
    6,519.63/9,781.26 = 2,140.17/x
  3. Step 3: Cross multiply
    6,519.63x = 9,781.26 × 2,140.17
  4. Step 4: Simplify right side
    6,519.63x = 20,933,559.21
  5. Step 5: Solve for x
    x = 20,933,559.21/6,519.63
  6. Step 6: Final answer
    x = 3,210.85

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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.