Home / 3,684.88-5,085.24-2,113.28

Finding the Fourth Proportional to 3,684.88, 5,085.24 and 2,113.28

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Solution

The fourth proportional to 3,684.88, 5,085.24 and 2,113.28 is: 2,916.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.88 : 5,085.24 = 2,113.28 : x
  2. Step 2: Convert to fraction form
    3,684.88/5,085.24 = 2,113.28/x
  3. Step 3: Cross multiply
    3,684.88x = 5,085.24 × 2,113.28
  4. Step 4: Simplify right side
    3,684.88x = 10,746,535.99
  5. Step 5: Solve for x
    x = 10,746,535.99/3,684.88
  6. Step 6: Final answer
    x = 2,916.39

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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.