Home / 6,690.20-10,006.14-3,910.28

Finding the Fourth Proportional to 6,690.20, 10,006.14 and 3,910.28

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Solution

The fourth proportional to 6,690.20, 10,006.14 and 3,910.28 is: 5,848.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,690.20 : 10,006.14 = 3,910.28 : x
  2. Step 2: Convert to fraction form
    6,690.20/10,006.14 = 3,910.28/x
  3. Step 3: Cross multiply
    6,690.20x = 10,006.14 × 3,910.28
  4. Step 4: Simplify right side
    6,690.20x = 39,126,809.12
  5. Step 5: Solve for x
    x = 39,126,809.12/6,690.20
  6. Step 6: Final answer
    x = 5,848.38

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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.