Home / 2,645.88-3,656.19-1,898.66

Finding the Fourth Proportional to 2,645.88, 3,656.19 and 1,898.66

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Solution

The fourth proportional to 2,645.88, 3,656.19 and 1,898.66 is: 2,623.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,645.88 : 3,656.19 = 1,898.66 : x
  2. Step 2: Convert to fraction form
    2,645.88/3,656.19 = 1,898.66/x
  3. Step 3: Cross multiply
    2,645.88x = 3,656.19 × 1,898.66
  4. Step 4: Simplify right side
    2,645.88x = 6,941,843.42
  5. Step 5: Solve for x
    x = 6,941,843.42/2,645.88
  6. Step 6: Final answer
    x = 2,623.64

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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.