Home / 5,785.57-8,671.39-2,661.27

Finding the Fourth Proportional to 5,785.57, 8,671.39 and 2,661.27

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Solution

The fourth proportional to 5,785.57, 8,671.39 and 2,661.27 is: 3,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.57 : 8,671.39 = 2,661.27 : x
  2. Step 2: Convert to fraction form
    5,785.57/8,671.39 = 2,661.27/x
  3. Step 3: Cross multiply
    5,785.57x = 8,671.39 × 2,661.27
  4. Step 4: Simplify right side
    5,785.57x = 23,076,884.20
  5. Step 5: Solve for x
    x = 23,076,884.20/5,785.57
  6. Step 6: Final answer
    x = 3,988.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.