Home / 3,172.12-4,758.96-1,224.46

Finding the Fourth Proportional to 3,172.12, 4,758.96 and 1,224.46

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Solution

The fourth proportional to 3,172.12, 4,758.96 and 1,224.46 is: 1,836.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.12 : 4,758.96 = 1,224.46 : x
  2. Step 2: Convert to fraction form
    3,172.12/4,758.96 = 1,224.46/x
  3. Step 3: Cross multiply
    3,172.12x = 4,758.96 × 1,224.46
  4. Step 4: Simplify right side
    3,172.12x = 5,827,156.16
  5. Step 5: Solve for x
    x = 5,827,156.16/3,172.12
  6. Step 6: Final answer
    x = 1,836.99

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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.