Home / 6,978.02-10,458.81-2,812.46

Finding the Fourth Proportional to 6,978.02, 10,458.81 and 2,812.46

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Solution

The fourth proportional to 6,978.02, 10,458.81 and 2,812.46 is: 4,215.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,978.02 : 10,458.81 = 2,812.46 : x
  2. Step 2: Convert to fraction form
    6,978.02/10,458.81 = 2,812.46/x
  3. Step 3: Cross multiply
    6,978.02x = 10,458.81 × 2,812.46
  4. Step 4: Simplify right side
    6,978.02x = 29,414,932.48
  5. Step 5: Solve for x
    x = 29,414,932.48/6,978.02
  6. Step 6: Final answer
    x = 4,215.37

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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.