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Finding the Fourth Proportional to 2,640.03, 3,640.84 and 2,370.70

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Solution

The fourth proportional to 2,640.03, 3,640.84 and 2,370.70 is: 3,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640.03 : 3,640.84 = 2,370.70 : x
  2. Step 2: Convert to fraction form
    2,640.03/3,640.84 = 2,370.70/x
  3. Step 3: Cross multiply
    2,640.03x = 3,640.84 × 2,370.70
  4. Step 4: Simplify right side
    2,640.03x = 8,631,339.39
  5. Step 5: Solve for x
    x = 8,631,339.39/2,640.03
  6. Step 6: Final answer
    x = 3,269.41

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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.