Home / 5,635.38-7,776.22-3,117.09

Finding the Fourth Proportional to 5,635.38, 7,776.22 and 3,117.09

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Solution

The fourth proportional to 5,635.38, 7,776.22 and 3,117.09 is: 4,301.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,635.38 : 7,776.22 = 3,117.09 : x
  2. Step 2: Convert to fraction form
    5,635.38/7,776.22 = 3,117.09/x
  3. Step 3: Cross multiply
    5,635.38x = 7,776.22 × 3,117.09
  4. Step 4: Simplify right side
    5,635.38x = 24,239,130.93
  5. Step 5: Solve for x
    x = 24,239,130.93/5,635.38
  6. Step 6: Final answer
    x = 4,301.25

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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.