Home / 3,099.69-4,649.99-1,125.45

Finding the Fourth Proportional to 3,099.69, 4,649.99 and 1,125.45

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Solution

The fourth proportional to 3,099.69, 4,649.99 and 1,125.45 is: 1,688.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.69 : 4,649.99 = 1,125.45 : x
  2. Step 2: Convert to fraction form
    3,099.69/4,649.99 = 1,125.45/x
  3. Step 3: Cross multiply
    3,099.69x = 4,649.99 × 1,125.45
  4. Step 4: Simplify right side
    3,099.69x = 5,233,325.62
  5. Step 5: Solve for x
    x = 5,233,325.62/3,099.69
  6. Step 6: Final answer
    x = 1,688.34

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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.