Home / 3,545.27-5,317.45-1,080.34

Finding the Fourth Proportional to 3,545.27, 5,317.45 and 1,080.34

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Solution

The fourth proportional to 3,545.27, 5,317.45 and 1,080.34 is: 1,620.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.27 : 5,317.45 = 1,080.34 : x
  2. Step 2: Convert to fraction form
    3,545.27/5,317.45 = 1,080.34/x
  3. Step 3: Cross multiply
    3,545.27x = 5,317.45 × 1,080.34
  4. Step 4: Simplify right side
    3,545.27x = 5,744,637.94
  5. Step 5: Solve for x
    x = 5,744,637.94/3,545.27
  6. Step 6: Final answer
    x = 1,620.37

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1.5x scale

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.