Home / 4,861.85-6,705.80-3,180.56

Finding the Fourth Proportional to 4,861.85, 6,705.80 and 3,180.56

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Solution

The fourth proportional to 4,861.85, 6,705.80 and 3,180.56 is: 4,386.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,861.85 : 6,705.80 = 3,180.56 : x
  2. Step 2: Convert to fraction form
    4,861.85/6,705.80 = 3,180.56/x
  3. Step 3: Cross multiply
    4,861.85x = 6,705.80 × 3,180.56
  4. Step 4: Simplify right side
    4,861.85x = 21,328,199.25
  5. Step 5: Solve for x
    x = 21,328,199.25/4,861.85
  6. Step 6: Final answer
    x = 4,386.85

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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.