Home / 3,316.50-4,577.16-1,990.94

Finding the Fourth Proportional to 3,316.50, 4,577.16 and 1,990.94

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Solution

The fourth proportional to 3,316.50, 4,577.16 and 1,990.94 is: 2,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.50 : 4,577.16 = 1,990.94 : x
  2. Step 2: Convert to fraction form
    3,316.50/4,577.16 = 1,990.94/x
  3. Step 3: Cross multiply
    3,316.50x = 4,577.16 × 1,990.94
  4. Step 4: Simplify right side
    3,316.50x = 9,112,828.04
  5. Step 5: Solve for x
    x = 9,112,828.04/3,316.50
  6. Step 6: Final answer
    x = 2,747.72

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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.