Home / 6,689.48-10,028.76-3,909.32

Finding the Fourth Proportional to 6,689.48, 10,028.76 and 3,909.32

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Solution

The fourth proportional to 6,689.48, 10,028.76 and 3,909.32 is: 5,860.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,689.48 : 10,028.76 = 3,909.32 : x
  2. Step 2: Convert to fraction form
    6,689.48/10,028.76 = 3,909.32/x
  3. Step 3: Cross multiply
    6,689.48x = 10,028.76 × 3,909.32
  4. Step 4: Simplify right side
    6,689.48x = 39,205,632.04
  5. Step 5: Solve for x
    x = 39,205,632.04/6,689.48
  6. Step 6: Final answer
    x = 5,860.79

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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.