Home / 2,615.80-3,921.48-1,518.84

Finding the Fourth Proportional to 2,615.80, 3,921.48 and 1,518.84

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Solution

The fourth proportional to 2,615.80, 3,921.48 and 1,518.84 is: 2,276.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.80 : 3,921.48 = 1,518.84 : x
  2. Step 2: Convert to fraction form
    2,615.80/3,921.48 = 1,518.84/x
  3. Step 3: Cross multiply
    2,615.80x = 3,921.48 × 1,518.84
  4. Step 4: Simplify right side
    2,615.80x = 5,956,100.68
  5. Step 5: Solve for x
    x = 5,956,100.68/2,615.80
  6. Step 6: Final answer
    x = 2,276.97

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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.