Home / 3,649.53-5,478.39-1,459.80

Finding the Fourth Proportional to 3,649.53, 5,478.39 and 1,459.80

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Solution

The fourth proportional to 3,649.53, 5,478.39 and 1,459.80 is: 2,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,649.53 : 5,478.39 = 1,459.80 : x
  2. Step 2: Convert to fraction form
    3,649.53/5,478.39 = 1,459.80/x
  3. Step 3: Cross multiply
    3,649.53x = 5,478.39 × 1,459.80
  4. Step 4: Simplify right side
    3,649.53x = 7,997,353.72
  5. Step 5: Solve for x
    x = 7,997,353.72/3,649.53
  6. Step 6: Final answer
    x = 2,191.34

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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.