Home / 5,920.12-8,110.45-5,698.54

Finding the Fourth Proportional to 5,920.12, 8,110.45 and 5,698.54

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Solution

The fourth proportional to 5,920.12, 8,110.45 and 5,698.54 is: 7,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.12 : 8,110.45 = 5,698.54 : x
  2. Step 2: Convert to fraction form
    5,920.12/8,110.45 = 5,698.54/x
  3. Step 3: Cross multiply
    5,920.12x = 8,110.45 × 5,698.54
  4. Step 4: Simplify right side
    5,920.12x = 46,217,695.25
  5. Step 5: Solve for x
    x = 46,217,695.25/5,920.12
  6. Step 6: Final answer
    x = 7,806.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.