Home / 6,915.14-10,372.75-1,721.02

Finding the Fourth Proportional to 6,915.14, 10,372.75 and 1,721.02

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Solution

The fourth proportional to 6,915.14, 10,372.75 and 1,721.02 is: 2,581.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.14 : 10,372.75 = 1,721.02 : x
  2. Step 2: Convert to fraction form
    6,915.14/10,372.75 = 1,721.02/x
  3. Step 3: Cross multiply
    6,915.14x = 10,372.75 × 1,721.02
  4. Step 4: Simplify right side
    6,915.14x = 17,851,688.58
  5. Step 5: Solve for x
    x = 17,851,688.58/6,915.14
  6. Step 6: Final answer
    x = 2,581.54

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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.