Home / 1,970.07-2,718.64-1,073.79

Finding the Fourth Proportional to 1,970.07, 2,718.64 and 1,073.79

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Solution

The fourth proportional to 1,970.07, 2,718.64 and 1,073.79 is: 1,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,970.07 : 2,718.64 = 1,073.79 : x
  2. Step 2: Convert to fraction form
    1,970.07/2,718.64 = 1,073.79/x
  3. Step 3: Cross multiply
    1,970.07x = 2,718.64 × 1,073.79
  4. Step 4: Simplify right side
    1,970.07x = 2,919,257.93
  5. Step 5: Solve for x
    x = 2,919,257.93/1,970.07
  6. Step 6: Final answer
    x = 1,481.80

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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.