Home / 1,927.12-2,894.57-1,148.64

Finding the Fourth Proportional to 1,927.12, 2,894.57 and 1,148.64

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Solution

The fourth proportional to 1,927.12, 2,894.57 and 1,148.64 is: 1,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,927.12 : 2,894.57 = 1,148.64 : x
  2. Step 2: Convert to fraction form
    1,927.12/2,894.57 = 1,148.64/x
  3. Step 3: Cross multiply
    1,927.12x = 2,894.57 × 1,148.64
  4. Step 4: Simplify right side
    1,927.12x = 3,324,834.55
  5. Step 5: Solve for x
    x = 3,324,834.55/1,927.12
  6. Step 6: Final answer
    x = 1,725.28

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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.