Home / 7,078.79-10,613.63-3,380.94

Finding the Fourth Proportional to 7,078.79, 10,613.63 and 3,380.94

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Solution

The fourth proportional to 7,078.79, 10,613.63 and 3,380.94 is: 5,069.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,078.79 : 10,613.63 = 3,380.94 : x
  2. Step 2: Convert to fraction form
    7,078.79/10,613.63 = 3,380.94/x
  3. Step 3: Cross multiply
    7,078.79x = 10,613.63 × 3,380.94
  4. Step 4: Simplify right side
    7,078.79x = 35,884,054.66
  5. Step 5: Solve for x
    x = 35,884,054.66/7,078.79
  6. Step 6: Final answer
    x = 5,069.23

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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.