Home / 6,920.78-10,372.53-3,459.02

Finding the Fourth Proportional to 6,920.78, 10,372.53 and 3,459.02

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Solution

The fourth proportional to 6,920.78, 10,372.53 and 3,459.02 is: 5,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,920.78 : 10,372.53 = 3,459.02 : x
  2. Step 2: Convert to fraction form
    6,920.78/10,372.53 = 3,459.02/x
  3. Step 3: Cross multiply
    6,920.78x = 10,372.53 × 3,459.02
  4. Step 4: Simplify right side
    6,920.78x = 35,878,788.72
  5. Step 5: Solve for x
    x = 35,878,788.72/6,920.78
  6. Step 6: Final answer
    x = 5,184.21

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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.