Home / 2,990.48-4,126.64-1,664.04

Finding the Fourth Proportional to 2,990.48, 4,126.64 and 1,664.04

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Solution

The fourth proportional to 2,990.48, 4,126.64 and 1,664.04 is: 2,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.48 : 4,126.64 = 1,664.04 : x
  2. Step 2: Convert to fraction form
    2,990.48/4,126.64 = 1,664.04/x
  3. Step 3: Cross multiply
    2,990.48x = 4,126.64 × 1,664.04
  4. Step 4: Simplify right side
    2,990.48x = 6,866,894.03
  5. Step 5: Solve for x
    x = 6,866,894.03/2,990.48
  6. Step 6: Final answer
    x = 2,296.25

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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.