Home / 3,785.15-5,223.74-2,106.93

Finding the Fourth Proportional to 3,785.15, 5,223.74 and 2,106.93

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Solution

The fourth proportional to 3,785.15, 5,223.74 and 2,106.93 is: 2,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,785.15 : 5,223.74 = 2,106.93 : x
  2. Step 2: Convert to fraction form
    3,785.15/5,223.74 = 2,106.93/x
  3. Step 3: Cross multiply
    3,785.15x = 5,223.74 × 2,106.93
  4. Step 4: Simplify right side
    3,785.15x = 11,006,043.98
  5. Step 5: Solve for x
    x = 11,006,043.98/3,785.15
  6. Step 6: Final answer
    x = 2,907.69

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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.