Home / 2,220.12-3,061.20-1,659.63

Finding the Fourth Proportional to 2,220.12, 3,061.20 and 1,659.63

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Solution

The fourth proportional to 2,220.12, 3,061.20 and 1,659.63 is: 2,288.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,220.12 : 3,061.20 = 1,659.63 : x
  2. Step 2: Convert to fraction form
    2,220.12/3,061.20 = 1,659.63/x
  3. Step 3: Cross multiply
    2,220.12x = 3,061.20 × 1,659.63
  4. Step 4: Simplify right side
    2,220.12x = 5,080,459.36
  5. Step 5: Solve for x
    x = 5,080,459.36/2,220.12
  6. Step 6: Final answer
    x = 2,288.37

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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.