Home / 3,617.76-4,990.56-2,290.98

Finding the Fourth Proportional to 3,617.76, 4,990.56 and 2,290.98

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Solution

The fourth proportional to 3,617.76, 4,990.56 and 2,290.98 is: 3,160.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,617.76 : 4,990.56 = 2,290.98 : x
  2. Step 2: Convert to fraction form
    3,617.76/4,990.56 = 2,290.98/x
  3. Step 3: Cross multiply
    3,617.76x = 4,990.56 × 2,290.98
  4. Step 4: Simplify right side
    3,617.76x = 11,433,273.15
  5. Step 5: Solve for x
    x = 11,433,273.15/3,617.76
  6. Step 6: Final answer
    x = 3,160.32

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1.5x scale

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.