Home / 2,664.68-3,997.35-1,430.39

Finding the Fourth Proportional to 2,664.68, 3,997.35 and 1,430.39

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Solution

The fourth proportional to 2,664.68, 3,997.35 and 1,430.39 is: 2,145.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.68 : 3,997.35 = 1,430.39 : x
  2. Step 2: Convert to fraction form
    2,664.68/3,997.35 = 1,430.39/x
  3. Step 3: Cross multiply
    2,664.68x = 3,997.35 × 1,430.39
  4. Step 4: Simplify right side
    2,664.68x = 5,717,769.47
  5. Step 5: Solve for x
    x = 5,717,769.47/2,664.68
  6. Step 6: Final answer
    x = 2,145.77

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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.