Home / 6,900.47-10,350.46-2,220.80

Finding the Fourth Proportional to 6,900.47, 10,350.46 and 2,220.80

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Solution

The fourth proportional to 6,900.47, 10,350.46 and 2,220.80 is: 3,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.47 : 10,350.46 = 2,220.80 : x
  2. Step 2: Convert to fraction form
    6,900.47/10,350.46 = 2,220.80/x
  3. Step 3: Cross multiply
    6,900.47x = 10,350.46 × 2,220.80
  4. Step 4: Simplify right side
    6,900.47x = 22,986,301.57
  5. Step 5: Solve for x
    x = 22,986,301.57/6,900.47
  6. Step 6: Final answer
    x = 3,331.12

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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.