Home / 4,669.90-7,002.69-1,382.20

Finding the Fourth Proportional to 4,669.90, 7,002.69 and 1,382.20

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Solution

The fourth proportional to 4,669.90, 7,002.69 and 1,382.20 is: 2,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,669.90 : 7,002.69 = 1,382.20 : x
  2. Step 2: Convert to fraction form
    4,669.90/7,002.69 = 1,382.20/x
  3. Step 3: Cross multiply
    4,669.90x = 7,002.69 × 1,382.20
  4. Step 4: Simplify right side
    4,669.90x = 9,679,118.12
  5. Step 5: Solve for x
    x = 9,679,118.12/4,669.90
  6. Step 6: Final answer
    x = 2,072.66

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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.