Home / 7,210.28-10,812.54-3,875.96

Finding the Fourth Proportional to 7,210.28, 10,812.54 and 3,875.96

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Solution

The fourth proportional to 7,210.28, 10,812.54 and 3,875.96 is: 5,812.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.28 : 10,812.54 = 3,875.96 : x
  2. Step 2: Convert to fraction form
    7,210.28/10,812.54 = 3,875.96/x
  3. Step 3: Cross multiply
    7,210.28x = 10,812.54 × 3,875.96
  4. Step 4: Simplify right side
    7,210.28x = 41,908,972.54
  5. Step 5: Solve for x
    x = 41,908,972.54/7,210.28
  6. Step 6: Final answer
    x = 5,812.39

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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.