Home / 3,290.47-4,540.87-2,113.59

Finding the Fourth Proportional to 3,290.47, 4,540.87 and 2,113.59

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Solution

The fourth proportional to 3,290.47, 4,540.87 and 2,113.59 is: 2,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.47 : 4,540.87 = 2,113.59 : x
  2. Step 2: Convert to fraction form
    3,290.47/4,540.87 = 2,113.59/x
  3. Step 3: Cross multiply
    3,290.47x = 4,540.87 × 2,113.59
  4. Step 4: Simplify right side
    3,290.47x = 9,597,531.33
  5. Step 5: Solve for x
    x = 9,597,531.33/3,290.47
  6. Step 6: Final answer
    x = 2,916.77

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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.