Home / 2,785.53-3,843.97-1,574.11

Finding the Fourth Proportional to 2,785.53, 3,843.97 and 1,574.11

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Solution

The fourth proportional to 2,785.53, 3,843.97 and 1,574.11 is: 2,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.53 : 3,843.97 = 1,574.11 : x
  2. Step 2: Convert to fraction form
    2,785.53/3,843.97 = 1,574.11/x
  3. Step 3: Cross multiply
    2,785.53x = 3,843.97 × 1,574.11
  4. Step 4: Simplify right side
    2,785.53x = 6,050,812.40
  5. Step 5: Solve for x
    x = 6,050,812.40/2,785.53
  6. Step 6: Final answer
    x = 2,172.23

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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.