Home / 2,276.03-3,140.96-1,392.32

Finding the Fourth Proportional to 2,276.03, 3,140.96 and 1,392.32

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Solution

The fourth proportional to 2,276.03, 3,140.96 and 1,392.32 is: 1,921.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,276.03 : 3,140.96 = 1,392.32 : x
  2. Step 2: Convert to fraction form
    2,276.03/3,140.96 = 1,392.32/x
  3. Step 3: Cross multiply
    2,276.03x = 3,140.96 × 1,392.32
  4. Step 4: Simplify right side
    2,276.03x = 4,373,198.76
  5. Step 5: Solve for x
    x = 4,373,198.76/2,276.03
  6. Step 6: Final answer
    x = 1,921.42

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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.