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Finding the Fourth Proportional to 3,354.71, 5,030.89 and 1,379.77

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Solution

The fourth proportional to 3,354.71, 5,030.89 and 1,379.77 is: 2,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.71 : 5,030.89 = 1,379.77 : x
  2. Step 2: Convert to fraction form
    3,354.71/5,030.89 = 1,379.77/x
  3. Step 3: Cross multiply
    3,354.71x = 5,030.89 × 1,379.77
  4. Step 4: Simplify right side
    3,354.71x = 6,941,455.07
  5. Step 5: Solve for x
    x = 6,941,455.07/3,354.71
  6. Step 6: Final answer
    x = 2,069.17

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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.