Home / 3,090.24-4,639.68-1,630.08

Finding the Fourth Proportional to 3,090.24, 4,639.68 and 1,630.08

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Solution

The fourth proportional to 3,090.24, 4,639.68 and 1,630.08 is: 2,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.24 : 4,639.68 = 1,630.08 : x
  2. Step 2: Convert to fraction form
    3,090.24/4,639.68 = 1,630.08/x
  3. Step 3: Cross multiply
    3,090.24x = 4,639.68 × 1,630.08
  4. Step 4: Simplify right side
    3,090.24x = 7,563,049.57
  5. Step 5: Solve for x
    x = 7,563,049.57/3,090.24
  6. Step 6: Final answer
    x = 2,447.40

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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.