Home / 3,545.02-5,317.80-1,080.05

Finding the Fourth Proportional to 3,545.02, 5,317.80 and 1,080.05

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Solution

The fourth proportional to 3,545.02, 5,317.80 and 1,080.05 is: 1,620.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.02 : 5,317.80 = 1,080.05 : x
  2. Step 2: Convert to fraction form
    3,545.02/5,317.80 = 1,080.05/x
  3. Step 3: Cross multiply
    3,545.02x = 5,317.80 × 1,080.05
  4. Step 4: Simplify right side
    3,545.02x = 5,743,489.89
  5. Step 5: Solve for x
    x = 5,743,489.89/3,545.02
  6. Step 6: Final answer
    x = 1,620.16

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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.