Home / 1,943.09-2,916.32-1,283.12

Finding the Fourth Proportional to 1,943.09, 2,916.32 and 1,283.12

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Solution

The fourth proportional to 1,943.09, 2,916.32 and 1,283.12 is: 1,925.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943.09 : 2,916.32 = 1,283.12 : x
  2. Step 2: Convert to fraction form
    1,943.09/2,916.32 = 1,283.12/x
  3. Step 3: Cross multiply
    1,943.09x = 2,916.32 × 1,283.12
  4. Step 4: Simplify right side
    1,943.09x = 3,741,967.52
  5. Step 5: Solve for x
    x = 3,741,967.52/1,943.09
  6. Step 6: Final answer
    x = 1,925.79

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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.