Home / 3,534.75-5,299.79-1,686.15

Finding the Fourth Proportional to 3,534.75, 5,299.79 and 1,686.15

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Solution

The fourth proportional to 3,534.75, 5,299.79 and 1,686.15 is: 2,528.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,534.75 : 5,299.79 = 1,686.15 : x
  2. Step 2: Convert to fraction form
    3,534.75/5,299.79 = 1,686.15/x
  3. Step 3: Cross multiply
    3,534.75x = 5,299.79 × 1,686.15
  4. Step 4: Simplify right side
    3,534.75x = 8,936,232.48
  5. Step 5: Solve for x
    x = 8,936,232.48/3,534.75
  6. Step 6: Final answer
    x = 2,528.11

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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.