Home / 2,985.46-4,120.03-1,659.22

Finding the Fourth Proportional to 2,985.46, 4,120.03 and 1,659.22

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Solution

The fourth proportional to 2,985.46, 4,120.03 and 1,659.22 is: 2,289.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,985.46 : 4,120.03 = 1,659.22 : x
  2. Step 2: Convert to fraction form
    2,985.46/4,120.03 = 1,659.22/x
  3. Step 3: Cross multiply
    2,985.46x = 4,120.03 × 1,659.22
  4. Step 4: Simplify right side
    2,985.46x = 6,836,027.95
  5. Step 5: Solve for x
    x = 6,836,027.95/2,985.46
  6. Step 6: Final answer
    x = 2,289.78

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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.