Home / 3,317.71-4,576.90-1,989.11

Finding the Fourth Proportional to 3,317.71, 4,576.90 and 1,989.11

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Solution

The fourth proportional to 3,317.71, 4,576.90 and 1,989.11 is: 2,744.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317.71 : 4,576.90 = 1,989.11 : x
  2. Step 2: Convert to fraction form
    3,317.71/4,576.90 = 1,989.11/x
  3. Step 3: Cross multiply
    3,317.71x = 4,576.90 × 1,989.11
  4. Step 4: Simplify right side
    3,317.71x = 9,103,957.56
  5. Step 5: Solve for x
    x = 9,103,957.56/3,317.71
  6. Step 6: Final answer
    x = 2,744.05

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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.