Home / 3,528.04-4,868.76-2,112.70

Finding the Fourth Proportional to 3,528.04, 4,868.76 and 2,112.70

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Solution

The fourth proportional to 3,528.04, 4,868.76 and 2,112.70 is: 2,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.04 : 4,868.76 = 2,112.70 : x
  2. Step 2: Convert to fraction form
    3,528.04/4,868.76 = 2,112.70/x
  3. Step 3: Cross multiply
    3,528.04x = 4,868.76 × 2,112.70
  4. Step 4: Simplify right side
    3,528.04x = 10,286,229.25
  5. Step 5: Solve for x
    x = 10,286,229.25/3,528.04
  6. Step 6: Final answer
    x = 2,915.56

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1.5x scale

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.