Home / 2,422.99-3,636.08-1,328.12

Finding the Fourth Proportional to 2,422.99, 3,636.08 and 1,328.12

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Solution

The fourth proportional to 2,422.99, 3,636.08 and 1,328.12 is: 1,993.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,422.99 : 3,636.08 = 1,328.12 : x
  2. Step 2: Convert to fraction form
    2,422.99/3,636.08 = 1,328.12/x
  3. Step 3: Cross multiply
    2,422.99x = 3,636.08 × 1,328.12
  4. Step 4: Simplify right side
    2,422.99x = 4,829,150.57
  5. Step 5: Solve for x
    x = 4,829,150.57/2,422.99
  6. Step 6: Final answer
    x = 1,993.05

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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.