Home / 2,990.59-4,126.90-1,664.27

Finding the Fourth Proportional to 2,990.59, 4,126.90 and 1,664.27

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Solution

The fourth proportional to 2,990.59, 4,126.90 and 1,664.27 is: 2,296.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.59 : 4,126.90 = 1,664.27 : x
  2. Step 2: Convert to fraction form
    2,990.59/4,126.90 = 1,664.27/x
  3. Step 3: Cross multiply
    2,990.59x = 4,126.90 × 1,664.27
  4. Step 4: Simplify right side
    2,990.59x = 6,868,269.66
  5. Step 5: Solve for x
    x = 6,868,269.66/2,990.59
  6. Step 6: Final answer
    x = 2,296.62

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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.