Home / 2,144.36-2,958.42-1,515.95

Finding the Fourth Proportional to 2,144.36, 2,958.42 and 1,515.95

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Solution

The fourth proportional to 2,144.36, 2,958.42 and 1,515.95 is: 2,091.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,144.36 : 2,958.42 = 1,515.95 : x
  2. Step 2: Convert to fraction form
    2,144.36/2,958.42 = 1,515.95/x
  3. Step 3: Cross multiply
    2,144.36x = 2,958.42 × 1,515.95
  4. Step 4: Simplify right side
    2,144.36x = 4,484,802.01
  5. Step 5: Solve for x
    x = 4,484,802.01/2,144.36
  6. Step 6: Final answer
    x = 2,091.45

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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.