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Finding the Fourth Proportional to 3,170.01, 4,755.84 and 1,320.51

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Solution

The fourth proportional to 3,170.01, 4,755.84 and 1,320.51 is: 1,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,170.01 : 4,755.84 = 1,320.51 : x
  2. Step 2: Convert to fraction form
    3,170.01/4,755.84 = 1,320.51/x
  3. Step 3: Cross multiply
    3,170.01x = 4,755.84 × 1,320.51
  4. Step 4: Simplify right side
    3,170.01x = 6,280,134.28
  5. Step 5: Solve for x
    x = 6,280,134.28/3,170.01
  6. Step 6: Final answer
    x = 1,981.11

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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.