Home / 2,918.75-4,376.58-1,273.38

Finding the Fourth Proportional to 2,918.75, 4,376.58 and 1,273.38

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Solution

The fourth proportional to 2,918.75, 4,376.58 and 1,273.38 is: 1,909.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918.75 : 4,376.58 = 1,273.38 : x
  2. Step 2: Convert to fraction form
    2,918.75/4,376.58 = 1,273.38/x
  3. Step 3: Cross multiply
    2,918.75x = 4,376.58 × 1,273.38
  4. Step 4: Simplify right side
    2,918.75x = 5,573,038.49
  5. Step 5: Solve for x
    x = 5,573,038.49/2,918.75
  6. Step 6: Final answer
    x = 1,909.39

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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.