Home / 6,869.90-10,305.61-2,190.13

Finding the Fourth Proportional to 6,869.90, 10,305.61 and 2,190.13

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Solution

The fourth proportional to 6,869.90, 10,305.61 and 2,190.13 is: 3,285.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,869.90 : 10,305.61 = 2,190.13 : x
  2. Step 2: Convert to fraction form
    6,869.90/10,305.61 = 2,190.13/x
  3. Step 3: Cross multiply
    6,869.90x = 10,305.61 × 2,190.13
  4. Step 4: Simplify right side
    6,869.90x = 22,570,625.63
  5. Step 5: Solve for x
    x = 22,570,625.63/6,869.90
  6. Step 6: Final answer
    x = 3,285.44

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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.