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Finding the Fourth Proportional to 3,168.17, 4,752.51 and 976.90

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Solution

The fourth proportional to 3,168.17, 4,752.51 and 976.90 is: 1,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.17 : 4,752.51 = 976.90 : x
  2. Step 2: Convert to fraction form
    3,168.17/4,752.51 = 976.90/x
  3. Step 3: Cross multiply
    3,168.17x = 4,752.51 × 976.90
  4. Step 4: Simplify right side
    3,168.17x = 4,642,727.02
  5. Step 5: Solve for x
    x = 4,642,727.02/3,168.17
  6. Step 6: Final answer
    x = 1,465.43

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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.