Home / 3,724.92-5,140.53-2,153.03

Finding the Fourth Proportional to 3,724.92, 5,140.53 and 2,153.03

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Solution

The fourth proportional to 3,724.92, 5,140.53 and 2,153.03 is: 2,971.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.92 : 5,140.53 = 2,153.03 : x
  2. Step 2: Convert to fraction form
    3,724.92/5,140.53 = 2,153.03/x
  3. Step 3: Cross multiply
    3,724.92x = 5,140.53 × 2,153.03
  4. Step 4: Simplify right side
    3,724.92x = 11,067,689.60
  5. Step 5: Solve for x
    x = 11,067,689.60/3,724.92
  6. Step 6: Final answer
    x = 2,971.26

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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.