Home / 2,081.40-3,122.02-848.45

Finding the Fourth Proportional to 2,081.40, 3,122.02 and 848.45

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Solution

The fourth proportional to 2,081.40, 3,122.02 and 848.45 is: 1,272.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081.40 : 3,122.02 = 848.45 : x
  2. Step 2: Convert to fraction form
    2,081.40/3,122.02 = 848.45/x
  3. Step 3: Cross multiply
    2,081.40x = 3,122.02 × 848.45
  4. Step 4: Simplify right side
    2,081.40x = 2,648,877.87
  5. Step 5: Solve for x
    x = 2,648,877.87/2,081.40
  6. Step 6: Final answer
    x = 1,272.64

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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.