Home / 4,121.46-5,689.62-2,777.40

Finding the Fourth Proportional to 4,121.46, 5,689.62 and 2,777.40

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Solution

The fourth proportional to 4,121.46, 5,689.62 and 2,777.40 is: 3,834.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.46 : 5,689.62 = 2,777.40 : x
  2. Step 2: Convert to fraction form
    4,121.46/5,689.62 = 2,777.40/x
  3. Step 3: Cross multiply
    4,121.46x = 5,689.62 × 2,777.40
  4. Step 4: Simplify right side
    4,121.46x = 15,802,350.59
  5. Step 5: Solve for x
    x = 15,802,350.59/4,121.46
  6. Step 6: Final answer
    x = 3,834.16

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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.