Home / 3,545.16-5,317.74-1,080

Finding the Fourth Proportional to 3,545.16, 5,317.74 and 1,080

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Solution

The fourth proportional to 3,545.16, 5,317.74 and 1,080 is: 1,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.16 : 5,317.74 = 1,080 : x
  2. Step 2: Convert to fraction form
    3,545.16/5,317.74 = 1,080/x
  3. Step 3: Cross multiply
    3,545.16x = 5,317.74 × 1,080
  4. Step 4: Simplify right side
    3,545.16x = 5,743,159.20
  5. Step 5: Solve for x
    x = 5,743,159.20/3,545.16
  6. Step 6: Final answer
    x = 1,620.00

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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.