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Finding the Fourth Proportional to 2,755.06, 4,130.76 and 1,934.32

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Solution

The fourth proportional to 2,755.06, 4,130.76 and 1,934.32 is: 2,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.06 : 4,130.76 = 1,934.32 : x
  2. Step 2: Convert to fraction form
    2,755.06/4,130.76 = 1,934.32/x
  3. Step 3: Cross multiply
    2,755.06x = 4,130.76 × 1,934.32
  4. Step 4: Simplify right side
    2,755.06x = 7,990,211.68
  5. Step 5: Solve for x
    x = 7,990,211.68/2,755.06
  6. Step 6: Final answer
    x = 2,900.20

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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.