Home / 3,702.08-5,108.67-2,108.72

Finding the Fourth Proportional to 3,702.08, 5,108.67 and 2,108.72

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Solution

The fourth proportional to 3,702.08, 5,108.67 and 2,108.72 is: 2,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.08 : 5,108.67 = 2,108.72 : x
  2. Step 2: Convert to fraction form
    3,702.08/5,108.67 = 2,108.72/x
  3. Step 3: Cross multiply
    3,702.08x = 5,108.67 × 2,108.72
  4. Step 4: Simplify right side
    3,702.08x = 10,772,729.06
  5. Step 5: Solve for x
    x = 10,772,729.06/3,702.08
  6. Step 6: Final answer
    x = 2,909.92

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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.