Home / 3,100.64-4,276.32-2,104.28

Finding the Fourth Proportional to 3,100.64, 4,276.32 and 2,104.28

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Solution

The fourth proportional to 3,100.64, 4,276.32 and 2,104.28 is: 2,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.64 : 4,276.32 = 2,104.28 : x
  2. Step 2: Convert to fraction form
    3,100.64/4,276.32 = 2,104.28/x
  3. Step 3: Cross multiply
    3,100.64x = 4,276.32 × 2,104.28
  4. Step 4: Simplify right side
    3,100.64x = 8,998,574.65
  5. Step 5: Solve for x
    x = 8,998,574.65/3,100.64
  6. Step 6: Final answer
    x = 2,902.17

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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.