Home / 3,702.11-5,109.15-2,130.17

Finding the Fourth Proportional to 3,702.11, 5,109.15 and 2,130.17

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Solution

The fourth proportional to 3,702.11, 5,109.15 and 2,130.17 is: 2,939.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,702.11 : 5,109.15 = 2,130.17 : x
  2. Step 2: Convert to fraction form
    3,702.11/5,109.15 = 2,130.17/x
  3. Step 3: Cross multiply
    3,702.11x = 5,109.15 × 2,130.17
  4. Step 4: Simplify right side
    3,702.11x = 10,883,358.06
  5. Step 5: Solve for x
    x = 10,883,358.06/3,702.11
  6. Step 6: Final answer
    x = 2,939.77

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Double scale
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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.