Home / 3,685.26-5,085.68-2,113.37

Finding the Fourth Proportional to 3,685.26, 5,085.68 and 2,113.37

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Solution

The fourth proportional to 3,685.26, 5,085.68 and 2,113.37 is: 2,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.26 : 5,085.68 = 2,113.37 : x
  2. Step 2: Convert to fraction form
    3,685.26/5,085.68 = 2,113.37/x
  3. Step 3: Cross multiply
    3,685.26x = 5,085.68 × 2,113.37
  4. Step 4: Simplify right side
    3,685.26x = 10,747,887.55
  5. Step 5: Solve for x
    x = 10,747,887.55/3,685.26
  6. Step 6: Final answer
    x = 2,916.45

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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.