Home / 3,260.30-4,890.69-1,615.19

Finding the Fourth Proportional to 3,260.30, 4,890.69 and 1,615.19

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Solution

The fourth proportional to 3,260.30, 4,890.69 and 1,615.19 is: 2,422.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,260.30 : 4,890.69 = 1,615.19 : x
  2. Step 2: Convert to fraction form
    3,260.30/4,890.69 = 1,615.19/x
  3. Step 3: Cross multiply
    3,260.30x = 4,890.69 × 1,615.19
  4. Step 4: Simplify right side
    3,260.30x = 7,899,369.13
  5. Step 5: Solve for x
    x = 7,899,369.13/3,260.30
  6. Step 6: Final answer
    x = 2,422.90

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1.5x scale

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.