Home / 3,106.17-4,658.58-1,857.15

Finding the Fourth Proportional to 3,106.17, 4,658.58 and 1,857.15

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Solution

The fourth proportional to 3,106.17, 4,658.58 and 1,857.15 is: 2,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.17 : 4,658.58 = 1,857.15 : x
  2. Step 2: Convert to fraction form
    3,106.17/4,658.58 = 1,857.15/x
  3. Step 3: Cross multiply
    3,106.17x = 4,658.58 × 1,857.15
  4. Step 4: Simplify right side
    3,106.17x = 8,651,681.85
  5. Step 5: Solve for x
    x = 8,651,681.85/3,106.17
  6. Step 6: Final answer
    x = 2,785.32

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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.