Home / 2,615.57-3,922.24-1,055.15

Finding the Fourth Proportional to 2,615.57, 3,922.24 and 1,055.15

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Solution

The fourth proportional to 2,615.57, 3,922.24 and 1,055.15 is: 1,582.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.57 : 3,922.24 = 1,055.15 : x
  2. Step 2: Convert to fraction form
    2,615.57/3,922.24 = 1,055.15/x
  3. Step 3: Cross multiply
    2,615.57x = 3,922.24 × 1,055.15
  4. Step 4: Simplify right side
    2,615.57x = 4,138,529.29
  5. Step 5: Solve for x
    x = 4,138,529.29/2,615.57
  6. Step 6: Final answer
    x = 1,582.27

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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.