Home / 4,845.89-6,686.79-2,720.99

Finding the Fourth Proportional to 4,845.89, 6,686.79 and 2,720.99

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Solution

The fourth proportional to 4,845.89, 6,686.79 and 2,720.99 is: 3,754.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.89 : 6,686.79 = 2,720.99 : x
  2. Step 2: Convert to fraction form
    4,845.89/6,686.79 = 2,720.99/x
  3. Step 3: Cross multiply
    4,845.89x = 6,686.79 × 2,720.99
  4. Step 4: Simplify right side
    4,845.89x = 18,194,688.72
  5. Step 5: Solve for x
    x = 18,194,688.72/4,845.89
  6. Step 6: Final answer
    x = 3,754.66

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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.