Home / 2,300.20-3,174.36-1,356.64

Finding the Fourth Proportional to 2,300.20, 3,174.36 and 1,356.64

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Solution

The fourth proportional to 2,300.20, 3,174.36 and 1,356.64 is: 1,872.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,300.20 : 3,174.36 = 1,356.64 : x
  2. Step 2: Convert to fraction form
    2,300.20/3,174.36 = 1,356.64/x
  3. Step 3: Cross multiply
    2,300.20x = 3,174.36 × 1,356.64
  4. Step 4: Simplify right side
    2,300.20x = 4,306,463.75
  5. Step 5: Solve for x
    x = 4,306,463.75/2,300.20
  6. Step 6: Final answer
    x = 1,872.21

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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.