Home / 5,545.12-7,649.04-3,973.60

Finding the Fourth Proportional to 5,545.12, 7,649.04 and 3,973.60

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Solution

The fourth proportional to 5,545.12, 7,649.04 and 3,973.60 is: 5,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,545.12 : 7,649.04 = 3,973.60 : x
  2. Step 2: Convert to fraction form
    5,545.12/7,649.04 = 3,973.60/x
  3. Step 3: Cross multiply
    5,545.12x = 7,649.04 × 3,973.60
  4. Step 4: Simplify right side
    5,545.12x = 30,394,225.34
  5. Step 5: Solve for x
    x = 30,394,225.34/5,545.12
  6. Step 6: Final answer
    x = 5,481.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.