Home / 3,528.15-4,868.82-2,112.45

Finding the Fourth Proportional to 3,528.15, 4,868.82 and 2,112.45

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Solution

The fourth proportional to 3,528.15, 4,868.82 and 2,112.45 is: 2,915.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.15 : 4,868.82 = 2,112.45 : x
  2. Step 2: Convert to fraction form
    3,528.15/4,868.82 = 2,112.45/x
  3. Step 3: Cross multiply
    3,528.15x = 4,868.82 × 2,112.45
  4. Step 4: Simplify right side
    3,528.15x = 10,285,138.81
  5. Step 5: Solve for x
    x = 10,285,138.81/3,528.15
  6. Step 6: Final answer
    x = 2,915.16

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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.