Home / 4,785.13-6,600.72-2,989.49

Finding the Fourth Proportional to 4,785.13, 6,600.72 and 2,989.49

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Solution

The fourth proportional to 4,785.13, 6,600.72 and 2,989.49 is: 4,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.13 : 6,600.72 = 2,989.49 : x
  2. Step 2: Convert to fraction form
    4,785.13/6,600.72 = 2,989.49/x
  3. Step 3: Cross multiply
    4,785.13x = 6,600.72 × 2,989.49
  4. Step 4: Simplify right side
    4,785.13x = 19,732,786.43
  5. Step 5: Solve for x
    x = 19,732,786.43/4,785.13
  6. Step 6: Final answer
    x = 4,123.78

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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.