Home / 4,200.38-6,300.56-1,122.38

Finding the Fourth Proportional to 4,200.38, 6,300.56 and 1,122.38

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Solution

The fourth proportional to 4,200.38, 6,300.56 and 1,122.38 is: 1,683.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.38 : 6,300.56 = 1,122.38 : x
  2. Step 2: Convert to fraction form
    4,200.38/6,300.56 = 1,122.38/x
  3. Step 3: Cross multiply
    4,200.38x = 6,300.56 × 1,122.38
  4. Step 4: Simplify right side
    4,200.38x = 7,071,593.84
  5. Step 5: Solve for x
    x = 7,071,593.84/4,200.38
  6. Step 6: Final answer
    x = 1,683.56

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1.5x scale

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.