Home / 2,990.04-4,126.08-1,663.68

Finding the Fourth Proportional to 2,990.04, 4,126.08 and 1,663.68

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Solution

The fourth proportional to 2,990.04, 4,126.08 and 1,663.68 is: 2,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.04 : 4,126.08 = 1,663.68 : x
  2. Step 2: Convert to fraction form
    2,990.04/4,126.08 = 1,663.68/x
  3. Step 3: Cross multiply
    2,990.04x = 4,126.08 × 1,663.68
  4. Step 4: Simplify right side
    2,990.04x = 6,864,476.77
  5. Step 5: Solve for x
    x = 6,864,476.77/2,990.04
  6. Step 6: Final answer
    x = 2,295.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.