Home / 2,113.10-2,916.36-1,229.25

Finding the Fourth Proportional to 2,113.10, 2,916.36 and 1,229.25

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Solution

The fourth proportional to 2,113.10, 2,916.36 and 1,229.25 is: 1,696.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113.10 : 2,916.36 = 1,229.25 : x
  2. Step 2: Convert to fraction form
    2,113.10/2,916.36 = 1,229.25/x
  3. Step 3: Cross multiply
    2,113.10x = 2,916.36 × 1,229.25
  4. Step 4: Simplify right side
    2,113.10x = 3,584,935.53
  5. Step 5: Solve for x
    x = 3,584,935.53/2,113.10
  6. Step 6: Final answer
    x = 1,696.53

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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.