Home / 3,181.40-4,389.62-2,002.04

Finding the Fourth Proportional to 3,181.40, 4,389.62 and 2,002.04

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Solution

The fourth proportional to 3,181.40, 4,389.62 and 2,002.04 is: 2,762.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181.40 : 4,389.62 = 2,002.04 : x
  2. Step 2: Convert to fraction form
    3,181.40/4,389.62 = 2,002.04/x
  3. Step 3: Cross multiply
    3,181.40x = 4,389.62 × 2,002.04
  4. Step 4: Simplify right side
    3,181.40x = 8,788,194.82
  5. Step 5: Solve for x
    x = 8,788,194.82/3,181.40
  6. Step 6: Final answer
    x = 2,762.37

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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.