Home / 3,570.53-5,349.12-2,989.28

Finding the Fourth Proportional to 3,570.53, 5,349.12 and 2,989.28

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Solution

The fourth proportional to 3,570.53, 5,349.12 and 2,989.28 is: 4,478.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,570.53 : 5,349.12 = 2,989.28 : x
  2. Step 2: Convert to fraction form
    3,570.53/5,349.12 = 2,989.28/x
  3. Step 3: Cross multiply
    3,570.53x = 5,349.12 × 2,989.28
  4. Step 4: Simplify right side
    3,570.53x = 15,989,990.69
  5. Step 5: Solve for x
    x = 15,989,990.69/3,570.53
  6. Step 6: Final answer
    x = 4,478.33

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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.