Home / 2,727.28-4,088.64-1,265.68

Finding the Fourth Proportional to 2,727.28, 4,088.64 and 1,265.68

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Solution

The fourth proportional to 2,727.28, 4,088.64 and 1,265.68 is: 1,897.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,727.28 : 4,088.64 = 1,265.68 : x
  2. Step 2: Convert to fraction form
    2,727.28/4,088.64 = 1,265.68/x
  3. Step 3: Cross multiply
    2,727.28x = 4,088.64 × 1,265.68
  4. Step 4: Simplify right side
    2,727.28x = 5,174,909.88
  5. Step 5: Solve for x
    x = 5,174,909.88/2,727.28
  6. Step 6: Final answer
    x = 1,897.46

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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.