Home / 2,975.64-4,107.20-1,855.91

Finding the Fourth Proportional to 2,975.64, 4,107.20 and 1,855.91

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Solution

The fourth proportional to 2,975.64, 4,107.20 and 1,855.91 is: 2,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.64 : 4,107.20 = 1,855.91 : x
  2. Step 2: Convert to fraction form
    2,975.64/4,107.20 = 1,855.91/x
  3. Step 3: Cross multiply
    2,975.64x = 4,107.20 × 1,855.91
  4. Step 4: Simplify right side
    2,975.64x = 7,622,587.92
  5. Step 5: Solve for x
    x = 7,622,587.92/2,975.64
  6. Step 6: Final answer
    x = 2,561.66

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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.