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Finding the Fourth Proportional to 4,813.88, 6,643.15 and 2,605.88

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Solution

The fourth proportional to 4,813.88, 6,643.15 and 2,605.88 is: 3,596.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.88 : 6,643.15 = 2,605.88 : x
  2. Step 2: Convert to fraction form
    4,813.88/6,643.15 = 2,605.88/x
  3. Step 3: Cross multiply
    4,813.88x = 6,643.15 × 2,605.88
  4. Step 4: Simplify right side
    4,813.88x = 17,311,211.99
  5. Step 5: Solve for x
    x = 17,311,211.99/4,813.88
  6. Step 6: Final answer
    x = 3,596.11

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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.