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Finding the Fourth Proportional to 2,700.86, 3,727.13 and 1,521.93

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Solution

The fourth proportional to 2,700.86, 3,727.13 and 1,521.93 is: 2,100.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.86 : 3,727.13 = 1,521.93 : x
  2. Step 2: Convert to fraction form
    2,700.86/3,727.13 = 1,521.93/x
  3. Step 3: Cross multiply
    2,700.86x = 3,727.13 × 1,521.93
  4. Step 4: Simplify right side
    2,700.86x = 5,672,430.96
  5. Step 5: Solve for x
    x = 5,672,430.96/2,700.86
  6. Step 6: Final answer
    x = 2,100.23

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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.