Home / 5,172.42-7,133.74-3,179.41

Finding the Fourth Proportional to 5,172.42, 7,133.74 and 3,179.41

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Solution

The fourth proportional to 5,172.42, 7,133.74 and 3,179.41 is: 4,385.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.42 : 7,133.74 = 3,179.41 : x
  2. Step 2: Convert to fraction form
    5,172.42/7,133.74 = 3,179.41/x
  3. Step 3: Cross multiply
    5,172.42x = 7,133.74 × 3,179.41
  4. Step 4: Simplify right side
    5,172.42x = 22,681,084.29
  5. Step 5: Solve for x
    x = 22,681,084.29/5,172.42
  6. Step 6: Final answer
    x = 4,385.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.