Home / 2,983.96-4,117.86-1,805.03

Finding the Fourth Proportional to 2,983.96, 4,117.86 and 1,805.03

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Solution

The fourth proportional to 2,983.96, 4,117.86 and 1,805.03 is: 2,490.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,983.96 : 4,117.86 = 1,805.03 : x
  2. Step 2: Convert to fraction form
    2,983.96/4,117.86 = 1,805.03/x
  3. Step 3: Cross multiply
    2,983.96x = 4,117.86 × 1,805.03
  4. Step 4: Simplify right side
    2,983.96x = 7,432,860.84
  5. Step 5: Solve for x
    x = 7,432,860.84/2,983.96
  6. Step 6: Final answer
    x = 2,490.94

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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.