Home / 4,814.30-6,643.66-2,689.87

Finding the Fourth Proportional to 4,814.30, 6,643.66 and 2,689.87

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Solution

The fourth proportional to 4,814.30, 6,643.66 and 2,689.87 is: 3,711.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,814.30 : 6,643.66 = 2,689.87 : x
  2. Step 2: Convert to fraction form
    4,814.30/6,643.66 = 2,689.87/x
  3. Step 3: Cross multiply
    4,814.30x = 6,643.66 × 2,689.87
  4. Step 4: Simplify right side
    4,814.30x = 17,870,581.72
  5. Step 5: Solve for x
    x = 17,870,581.72/4,814.30
  6. Step 6: Final answer
    x = 3,711.98

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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.