Home / 3,545.71-5,315.90-1,204.25

Finding the Fourth Proportional to 3,545.71, 5,315.90 and 1,204.25

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Solution

The fourth proportional to 3,545.71, 5,315.90 and 1,204.25 is: 1,805.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,545.71 : 5,315.90 = 1,204.25 : x
  2. Step 2: Convert to fraction form
    3,545.71/5,315.90 = 1,204.25/x
  3. Step 3: Cross multiply
    3,545.71x = 5,315.90 × 1,204.25
  4. Step 4: Simplify right side
    3,545.71x = 6,401,669.88
  5. Step 5: Solve for x
    x = 6,401,669.88/3,545.71
  6. Step 6: Final answer
    x = 1,805.47

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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.