Home / 3,569.18-5,355.30-1,379.45

Finding the Fourth Proportional to 3,569.18, 5,355.30 and 1,379.45

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Solution

The fourth proportional to 3,569.18, 5,355.30 and 1,379.45 is: 2,069.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,569.18 : 5,355.30 = 1,379.45 : x
  2. Step 2: Convert to fraction form
    3,569.18/5,355.30 = 1,379.45/x
  3. Step 3: Cross multiply
    3,569.18x = 5,355.30 × 1,379.45
  4. Step 4: Simplify right side
    3,569.18x = 7,387,349.26
  5. Step 5: Solve for x
    x = 7,387,349.26/3,569.18
  6. Step 6: Final answer
    x = 2,069.76

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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.