Home / 2,378.72-3,563.98-1,684.21

Finding the Fourth Proportional to 2,378.72, 3,563.98 and 1,684.21

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Solution

The fourth proportional to 2,378.72, 3,563.98 and 1,684.21 is: 2,523.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,378.72 : 3,563.98 = 1,684.21 : x
  2. Step 2: Convert to fraction form
    2,378.72/3,563.98 = 1,684.21/x
  3. Step 3: Cross multiply
    2,378.72x = 3,563.98 × 1,684.21
  4. Step 4: Simplify right side
    2,378.72x = 6,002,490.76
  5. Step 5: Solve for x
    x = 6,002,490.76/2,378.72
  6. Step 6: Final answer
    x = 2,523.41

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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.