Home / 7,613.64-11,420.82-2,419.56

Finding the Fourth Proportional to 7,613.64, 11,420.82 and 2,419.56

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Solution

The fourth proportional to 7,613.64, 11,420.82 and 2,419.56 is: 3,629.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.64 : 11,420.82 = 2,419.56 : x
  2. Step 2: Convert to fraction form
    7,613.64/11,420.82 = 2,419.56/x
  3. Step 3: Cross multiply
    7,613.64x = 11,420.82 × 2,419.56
  4. Step 4: Simplify right side
    7,613.64x = 27,633,359.24
  5. Step 5: Solve for x
    x = 27,633,359.24/7,613.64
  6. Step 6: Final answer
    x = 3,629.45

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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.