Home / 4,509.02-6,764.62-1,388.90

Finding the Fourth Proportional to 4,509.02, 6,764.62 and 1,388.90

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Solution

The fourth proportional to 4,509.02, 6,764.62 and 1,388.90 is: 2,083.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,509.02 : 6,764.62 = 1,388.90 : x
  2. Step 2: Convert to fraction form
    4,509.02/6,764.62 = 1,388.90/x
  3. Step 3: Cross multiply
    4,509.02x = 6,764.62 × 1,388.90
  4. Step 4: Simplify right side
    4,509.02x = 9,395,380.72
  5. Step 5: Solve for x
    x = 9,395,380.72/4,509.02
  6. Step 6: Final answer
    x = 2,083.69

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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.