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Finding the Fourth Proportional to 4,693.38, 7,040.07 and 1,919.57

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Solution

The fourth proportional to 4,693.38, 7,040.07 and 1,919.57 is: 2,879.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,693.38 : 7,040.07 = 1,919.57 : x
  2. Step 2: Convert to fraction form
    4,693.38/7,040.07 = 1,919.57/x
  3. Step 3: Cross multiply
    4,693.38x = 7,040.07 × 1,919.57
  4. Step 4: Simplify right side
    4,693.38x = 13,513,907.17
  5. Step 5: Solve for x
    x = 13,513,907.17/4,693.38
  6. Step 6: Final answer
    x = 2,879.36

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1.5x scale

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.