Home / 1,990.09-2,746.36-1,244.50

Finding the Fourth Proportional to 1,990.09, 2,746.36 and 1,244.50

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Solution

The fourth proportional to 1,990.09, 2,746.36 and 1,244.50 is: 1,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990.09 : 2,746.36 = 1,244.50 : x
  2. Step 2: Convert to fraction form
    1,990.09/2,746.36 = 1,244.50/x
  3. Step 3: Cross multiply
    1,990.09x = 2,746.36 × 1,244.50
  4. Step 4: Simplify right side
    1,990.09x = 3,417,844.30
  5. Step 5: Solve for x
    x = 3,417,844.30/1,990.09
  6. Step 6: Final answer
    x = 1,717.43

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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.