Home / 5,625.87-7,758.66-4,684.78

Finding the Fourth Proportional to 5,625.87, 7,758.66 and 4,684.78

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Solution

The fourth proportional to 5,625.87, 7,758.66 and 4,684.78 is: 6,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,625.87 : 7,758.66 = 4,684.78 : x
  2. Step 2: Convert to fraction form
    5,625.87/7,758.66 = 4,684.78/x
  3. Step 3: Cross multiply
    5,625.87x = 7,758.66 × 4,684.78
  4. Step 4: Simplify right side
    5,625.87x = 36,347,595.80
  5. Step 5: Solve for x
    x = 36,347,595.80/5,625.87
  6. Step 6: Final answer
    x = 6,460.80

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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.