Home / 2,785.23-4,175.64-1,397.84

Finding the Fourth Proportional to 2,785.23, 4,175.64 and 1,397.84

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Solution

The fourth proportional to 2,785.23, 4,175.64 and 1,397.84 is: 2,095.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.23 : 4,175.64 = 1,397.84 : x
  2. Step 2: Convert to fraction form
    2,785.23/4,175.64 = 1,397.84/x
  3. Step 3: Cross multiply
    2,785.23x = 4,175.64 × 1,397.84
  4. Step 4: Simplify right side
    2,785.23x = 5,836,855.74
  5. Step 5: Solve for x
    x = 5,836,855.74/2,785.23
  6. Step 6: Final answer
    x = 2,095.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.