Home / 3,470.20-4,777.78-3,090.28

Finding the Fourth Proportional to 3,470.20, 4,777.78 and 3,090.28

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Solution

The fourth proportional to 3,470.20, 4,777.78 and 3,090.28 is: 4,254.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.20 : 4,777.78 = 3,090.28 : x
  2. Step 2: Convert to fraction form
    3,470.20/4,777.78 = 3,090.28/x
  3. Step 3: Cross multiply
    3,470.20x = 4,777.78 × 3,090.28
  4. Step 4: Simplify right side
    3,470.20x = 14,764,677.98
  5. Step 5: Solve for x
    x = 14,764,677.98/3,470.20
  6. Step 6: Final answer
    x = 4,254.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.