Home / 8,684.31-13,028.28-3,490.19

Finding the Fourth Proportional to 8,684.31, 13,028.28 and 3,490.19

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Solution

The fourth proportional to 8,684.31, 13,028.28 and 3,490.19 is: 5,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.31 : 13,028.28 = 3,490.19 : x
  2. Step 2: Convert to fraction form
    8,684.31/13,028.28 = 3,490.19/x
  3. Step 3: Cross multiply
    8,684.31x = 13,028.28 × 3,490.19
  4. Step 4: Simplify right side
    8,684.31x = 45,471,143.20
  5. Step 5: Solve for x
    x = 45,471,143.20/8,684.31
  6. Step 6: Final answer
    x = 5,236.01

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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.