Home / 5,172.81-7,760.58-2,706.96

Finding the Fourth Proportional to 5,172.81, 7,760.58 and 2,706.96

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Solution

The fourth proportional to 5,172.81, 7,760.58 and 2,706.96 is: 4,061.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172.81 : 7,760.58 = 2,706.96 : x
  2. Step 2: Convert to fraction form
    5,172.81/7,760.58 = 2,706.96/x
  3. Step 3: Cross multiply
    5,172.81x = 7,760.58 × 2,706.96
  4. Step 4: Simplify right side
    5,172.81x = 21,007,598.59
  5. Step 5: Solve for x
    x = 21,007,598.59/5,172.81
  6. Step 6: Final answer
    x = 4,061.16

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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.