Home / 6,885.18-10,322.64-2,721.78

Finding the Fourth Proportional to 6,885.18, 10,322.64 and 2,721.78

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Solution

The fourth proportional to 6,885.18, 10,322.64 and 2,721.78 is: 4,080.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,885.18 : 10,322.64 = 2,721.78 : x
  2. Step 2: Convert to fraction form
    6,885.18/10,322.64 = 2,721.78/x
  3. Step 3: Cross multiply
    6,885.18x = 10,322.64 × 2,721.78
  4. Step 4: Simplify right side
    6,885.18x = 28,095,955.10
  5. Step 5: Solve for x
    x = 28,095,955.10/6,885.18
  6. Step 6: Final answer
    x = 4,080.64

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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.