Home / 2,100.28-2,898.44-1,168.80

Finding the Fourth Proportional to 2,100.28, 2,898.44 and 1,168.80

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Solution

The fourth proportional to 2,100.28, 2,898.44 and 1,168.80 is: 1,612.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,100.28 : 2,898.44 = 1,168.80 : x
  2. Step 2: Convert to fraction form
    2,100.28/2,898.44 = 1,168.80/x
  3. Step 3: Cross multiply
    2,100.28x = 2,898.44 × 1,168.80
  4. Step 4: Simplify right side
    2,100.28x = 3,387,696.67
  5. Step 5: Solve for x
    x = 3,387,696.67/2,100.28
  6. Step 6: Final answer
    x = 1,612.97

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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.