Home / 3,702.94-5,108.78-2,305.60

Finding the Fourth Proportional to 3,702.94, 5,108.78 and 2,305.60

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Solution

The fourth proportional to 3,702.94, 5,108.78 and 2,305.60 is: 3,180.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.94 : 5,108.78 = 2,305.60 : x
  2. Step 2: Convert to fraction form
    3,702.94/5,108.78 = 2,305.60/x
  3. Step 3: Cross multiply
    3,702.94x = 5,108.78 × 2,305.60
  4. Step 4: Simplify right side
    3,702.94x = 11,778,803.17
  5. Step 5: Solve for x
    x = 11,778,803.17/3,702.94
  6. Step 6: Final answer
    x = 3,180.93

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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.