Home / 6,916.84-10,378.89-4,149.07

Finding the Fourth Proportional to 6,916.84, 10,378.89 and 4,149.07

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Solution

The fourth proportional to 6,916.84, 10,378.89 and 4,149.07 is: 6,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,916.84 : 10,378.89 = 4,149.07 : x
  2. Step 2: Convert to fraction form
    6,916.84/10,378.89 = 4,149.07/x
  3. Step 3: Cross multiply
    6,916.84x = 10,378.89 × 4,149.07
  4. Step 4: Simplify right side
    6,916.84x = 43,062,741.13
  5. Step 5: Solve for x
    x = 43,062,741.13/6,916.84
  6. Step 6: Final answer
    x = 6,225.78

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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.