Home / 4,989.34-6,885.22-2,720.72

Finding the Fourth Proportional to 4,989.34, 6,885.22 and 2,720.72

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Solution

The fourth proportional to 4,989.34, 6,885.22 and 2,720.72 is: 3,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.34 : 6,885.22 = 2,720.72 : x
  2. Step 2: Convert to fraction form
    4,989.34/6,885.22 = 2,720.72/x
  3. Step 3: Cross multiply
    4,989.34x = 6,885.22 × 2,720.72
  4. Step 4: Simplify right side
    4,989.34x = 18,732,755.76
  5. Step 5: Solve for x
    x = 18,732,755.76/4,989.34
  6. Step 6: Final answer
    x = 3,754.56

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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.