Home / 2,874.32-3,966.24-1,615.08

Finding the Fourth Proportional to 2,874.32, 3,966.24 and 1,615.08

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Solution

The fourth proportional to 2,874.32, 3,966.24 and 1,615.08 is: 2,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.32 : 3,966.24 = 1,615.08 : x
  2. Step 2: Convert to fraction form
    2,874.32/3,966.24 = 1,615.08/x
  3. Step 3: Cross multiply
    2,874.32x = 3,966.24 × 1,615.08
  4. Step 4: Simplify right side
    2,874.32x = 6,405,794.90
  5. Step 5: Solve for x
    x = 6,405,794.90/2,874.32
  6. Step 6: Final answer
    x = 2,228.63

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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.