Home / 3,290.28-4,541.22-2,112.84

Finding the Fourth Proportional to 3,290.28, 4,541.22 and 2,112.84

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Solution

The fourth proportional to 3,290.28, 4,541.22 and 2,112.84 is: 2,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.28 : 4,541.22 = 2,112.84 : x
  2. Step 2: Convert to fraction form
    3,290.28/4,541.22 = 2,112.84/x
  3. Step 3: Cross multiply
    3,290.28x = 4,541.22 × 2,112.84
  4. Step 4: Simplify right side
    3,290.28x = 9,594,871.26
  5. Step 5: Solve for x
    x = 9,594,871.26/3,290.28
  6. Step 6: Final answer
    x = 2,916.13

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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.