Home / 6,515.30-8,991.48-3,682.59

Finding the Fourth Proportional to 6,515.30, 8,991.48 and 3,682.59

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Solution

The fourth proportional to 6,515.30, 8,991.48 and 3,682.59 is: 5,082.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.30 : 8,991.48 = 3,682.59 : x
  2. Step 2: Convert to fraction form
    6,515.30/8,991.48 = 3,682.59/x
  3. Step 3: Cross multiply
    6,515.30x = 8,991.48 × 3,682.59
  4. Step 4: Simplify right side
    6,515.30x = 33,111,934.33
  5. Step 5: Solve for x
    x = 33,111,934.33/6,515.30
  6. Step 6: Final answer
    x = 5,082.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.