Home / 3,110.84-4,290.72-2,114.38

Finding the Fourth Proportional to 3,110.84, 4,290.72 and 2,114.38

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Solution

The fourth proportional to 3,110.84, 4,290.72 and 2,114.38 is: 2,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.84 : 4,290.72 = 2,114.38 : x
  2. Step 2: Convert to fraction form
    3,110.84/4,290.72 = 2,114.38/x
  3. Step 3: Cross multiply
    3,110.84x = 4,290.72 × 2,114.38
  4. Step 4: Simplify right side
    3,110.84x = 9,072,212.55
  5. Step 5: Solve for x
    x = 9,072,212.55/3,110.84
  6. Step 6: Final answer
    x = 2,916.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.