Home / 2,276.24-3,141.36-1,392.08

Finding the Fourth Proportional to 2,276.24, 3,141.36 and 1,392.08

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Solution

The fourth proportional to 2,276.24, 3,141.36 and 1,392.08 is: 1,921.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.24 : 3,141.36 = 1,392.08 : x
  2. Step 2: Convert to fraction form
    2,276.24/3,141.36 = 1,392.08/x
  3. Step 3: Cross multiply
    2,276.24x = 3,141.36 × 1,392.08
  4. Step 4: Simplify right side
    2,276.24x = 4,373,024.43
  5. Step 5: Solve for x
    x = 4,373,024.43/2,276.24
  6. Step 6: Final answer
    x = 1,921.16

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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.