Home / 3,032.72-4,182.64-2,139.38

Finding the Fourth Proportional to 3,032.72, 4,182.64 and 2,139.38

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Solution

The fourth proportional to 3,032.72, 4,182.64 and 2,139.38 is: 2,950.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,032.72 : 4,182.64 = 2,139.38 : x
  2. Step 2: Convert to fraction form
    3,032.72/4,182.64 = 2,139.38/x
  3. Step 3: Cross multiply
    3,032.72x = 4,182.64 × 2,139.38
  4. Step 4: Simplify right side
    3,032.72x = 8,948,256.36
  5. Step 5: Solve for x
    x = 8,948,256.36/3,032.72
  6. Step 6: Final answer
    x = 2,950.57

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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.