Home / 6,938.12-10,411.28-2,558.65

Finding the Fourth Proportional to 6,938.12, 10,411.28 and 2,558.65

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Solution

The fourth proportional to 6,938.12, 10,411.28 and 2,558.65 is: 3,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.12 : 10,411.28 = 2,558.65 : x
  2. Step 2: Convert to fraction form
    6,938.12/10,411.28 = 2,558.65/x
  3. Step 3: Cross multiply
    6,938.12x = 10,411.28 × 2,558.65
  4. Step 4: Simplify right side
    6,938.12x = 26,638,847.60
  5. Step 5: Solve for x
    x = 26,638,847.60/6,938.12
  6. Step 6: Final answer
    x = 3,839.49

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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.