Home / 3,316.13-4,576.64-1,990.56

Finding the Fourth Proportional to 3,316.13, 4,576.64 and 1,990.56

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Solution

The fourth proportional to 3,316.13, 4,576.64 and 1,990.56 is: 2,747.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,316.13 : 4,576.64 = 1,990.56 : x
  2. Step 2: Convert to fraction form
    3,316.13/4,576.64 = 1,990.56/x
  3. Step 3: Cross multiply
    3,316.13x = 4,576.64 × 1,990.56
  4. Step 4: Simplify right side
    3,316.13x = 9,110,066.57
  5. Step 5: Solve for x
    x = 9,110,066.57/3,316.13
  6. Step 6: Final answer
    x = 2,747.20

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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.