Home / 4,814.11-6,643.49-2,689.65

Finding the Fourth Proportional to 4,814.11, 6,643.49 and 2,689.65

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Solution

The fourth proportional to 4,814.11, 6,643.49 and 2,689.65 is: 3,711.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.11 : 6,643.49 = 2,689.65 : x
  2. Step 2: Convert to fraction form
    4,814.11/6,643.49 = 2,689.65/x
  3. Step 3: Cross multiply
    4,814.11x = 6,643.49 × 2,689.65
  4. Step 4: Simplify right side
    4,814.11x = 17,868,650.43
  5. Step 5: Solve for x
    x = 17,868,650.43/4,814.11
  6. Step 6: Final answer
    x = 3,711.72

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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.