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Finding the Fourth Proportional to 1,954.55, 2,926.15 and 1,520.39

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Solution

The fourth proportional to 1,954.55, 2,926.15 and 1,520.39 is: 2,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.55 : 2,926.15 = 1,520.39 : x
  2. Step 2: Convert to fraction form
    1,954.55/2,926.15 = 1,520.39/x
  3. Step 3: Cross multiply
    1,954.55x = 2,926.15 × 1,520.39
  4. Step 4: Simplify right side
    1,954.55x = 4,448,870.77
  5. Step 5: Solve for x
    x = 4,448,870.77/1,954.55
  6. Step 6: Final answer
    x = 2,276.17

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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.