Home / 4,215.48-6,315.64-2,751

Finding the Fourth Proportional to 4,215.48, 6,315.64 and 2,751

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Solution

The fourth proportional to 4,215.48, 6,315.64 and 2,751 is: 4,121.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,215.48 : 6,315.64 = 2,751 : x
  2. Step 2: Convert to fraction form
    4,215.48/6,315.64 = 2,751/x
  3. Step 3: Cross multiply
    4,215.48x = 6,315.64 × 2,751
  4. Step 4: Simplify right side
    4,215.48x = 17,374,325.64
  5. Step 5: Solve for x
    x = 17,374,325.64/4,215.48
  6. Step 6: Final answer
    x = 4,121.55

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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.