Home / 3,090.54-4,639.06-1,143.30

Finding the Fourth Proportional to 3,090.54, 4,639.06 and 1,143.30

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Solution

The fourth proportional to 3,090.54, 4,639.06 and 1,143.30 is: 1,716.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.54 : 4,639.06 = 1,143.30 : x
  2. Step 2: Convert to fraction form
    3,090.54/4,639.06 = 1,143.30/x
  3. Step 3: Cross multiply
    3,090.54x = 4,639.06 × 1,143.30
  4. Step 4: Simplify right side
    3,090.54x = 5,303,837.30
  5. Step 5: Solve for x
    x = 5,303,837.30/3,090.54
  6. Step 6: Final answer
    x = 1,716.15

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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.