Home / 3,180.15-4,386.38-3,073.11

Finding the Fourth Proportional to 3,180.15, 4,386.38 and 3,073.11

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Solution

The fourth proportional to 3,180.15, 4,386.38 and 3,073.11 is: 4,238.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.15 : 4,386.38 = 3,073.11 : x
  2. Step 2: Convert to fraction form
    3,180.15/4,386.38 = 3,073.11/x
  3. Step 3: Cross multiply
    3,180.15x = 4,386.38 × 3,073.11
  4. Step 4: Simplify right side
    3,180.15x = 13,479,813.99
  5. Step 5: Solve for x
    x = 13,479,813.99/3,180.15
  6. Step 6: Final answer
    x = 4,238.74

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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.