Home / 5,509.37-7,603.90-3,119.48

Finding the Fourth Proportional to 5,509.37, 7,603.90 and 3,119.48

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Solution

The fourth proportional to 5,509.37, 7,603.90 and 3,119.48 is: 4,305.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.37 : 7,603.90 = 3,119.48 : x
  2. Step 2: Convert to fraction form
    5,509.37/7,603.90 = 3,119.48/x
  3. Step 3: Cross multiply
    5,509.37x = 7,603.90 × 3,119.48
  4. Step 4: Simplify right side
    5,509.37x = 23,720,175.95
  5. Step 5: Solve for x
    x = 23,720,175.95/5,509.37
  6. Step 6: Final answer
    x = 4,305.43

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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.