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Finding the Fourth Proportional to 2,700.99, 3,726.41 and 1,521.77

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Solution

The fourth proportional to 2,700.99, 3,726.41 and 1,521.77 is: 2,099.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.99 : 3,726.41 = 1,521.77 : x
  2. Step 2: Convert to fraction form
    2,700.99/3,726.41 = 1,521.77/x
  3. Step 3: Cross multiply
    2,700.99x = 3,726.41 × 1,521.77
  4. Step 4: Simplify right side
    2,700.99x = 5,670,712.70
  5. Step 5: Solve for x
    x = 5,670,712.70/2,700.99
  6. Step 6: Final answer
    x = 2,099.49

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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.