Home / 4,651.50-6,418.44-2,859.78

Finding the Fourth Proportional to 4,651.50, 6,418.44 and 2,859.78

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Solution

The fourth proportional to 4,651.50, 6,418.44 and 2,859.78 is: 3,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,651.50 : 6,418.44 = 2,859.78 : x
  2. Step 2: Convert to fraction form
    4,651.50/6,418.44 = 2,859.78/x
  3. Step 3: Cross multiply
    4,651.50x = 6,418.44 × 2,859.78
  4. Step 4: Simplify right side
    4,651.50x = 18,355,326.34
  5. Step 5: Solve for x
    x = 18,355,326.34/4,651.50
  6. Step 6: Final answer
    x = 3,946.11

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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.