Home / 4,813.86-6,643.04-2,689.43

Finding the Fourth Proportional to 4,813.86, 6,643.04 and 2,689.43

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Solution

The fourth proportional to 4,813.86, 6,643.04 and 2,689.43 is: 3,711.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.86 : 6,643.04 = 2,689.43 : x
  2. Step 2: Convert to fraction form
    4,813.86/6,643.04 = 2,689.43/x
  3. Step 3: Cross multiply
    4,813.86x = 6,643.04 × 2,689.43
  4. Step 4: Simplify right side
    4,813.86x = 17,865,957.85
  5. Step 5: Solve for x
    x = 17,865,957.85/4,813.86
  6. Step 6: Final answer
    x = 3,711.36

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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.