Home / 3,545.90-5,320.68-1,696.64

Finding the Fourth Proportional to 3,545.90, 5,320.68 and 1,696.64

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Solution

The fourth proportional to 3,545.90, 5,320.68 and 1,696.64 is: 2,545.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.90 : 5,320.68 = 1,696.64 : x
  2. Step 2: Convert to fraction form
    3,545.90/5,320.68 = 1,696.64/x
  3. Step 3: Cross multiply
    3,545.90x = 5,320.68 × 1,696.64
  4. Step 4: Simplify right side
    3,545.90x = 9,027,278.52
  5. Step 5: Solve for x
    x = 9,027,278.52/3,545.90
  6. Step 6: Final answer
    x = 2,545.84

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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.