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Finding the Fourth Proportional to 2,997.84, 4,137.42 and 1,722.22

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Solution

The fourth proportional to 2,997.84, 4,137.42 and 1,722.22 is: 2,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.84 : 4,137.42 = 1,722.22 : x
  2. Step 2: Convert to fraction form
    2,997.84/4,137.42 = 1,722.22/x
  3. Step 3: Cross multiply
    2,997.84x = 4,137.42 × 1,722.22
  4. Step 4: Simplify right side
    2,997.84x = 7,125,547.47
  5. Step 5: Solve for x
    x = 7,125,547.47/2,997.84
  6. Step 6: Final answer
    x = 2,376.89

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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.