Home / 2,990.37-4,126.47-1,663.89

Finding the Fourth Proportional to 2,990.37, 4,126.47 and 1,663.89

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Solution

The fourth proportional to 2,990.37, 4,126.47 and 1,663.89 is: 2,296.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,990.37 : 4,126.47 = 1,663.89 : x
  2. Step 2: Convert to fraction form
    2,990.37/4,126.47 = 1,663.89/x
  3. Step 3: Cross multiply
    2,990.37x = 4,126.47 × 1,663.89
  4. Step 4: Simplify right side
    2,990.37x = 6,865,992.17
  5. Step 5: Solve for x
    x = 6,865,992.17/2,990.37
  6. Step 6: Final answer
    x = 2,296.03

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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.