Home / 3,047.45-4,570.49-1,815.21

Finding the Fourth Proportional to 3,047.45, 4,570.49 and 1,815.21

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Solution

The fourth proportional to 3,047.45, 4,570.49 and 1,815.21 is: 2,722.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,047.45 : 4,570.49 = 1,815.21 : x
  2. Step 2: Convert to fraction form
    3,047.45/4,570.49 = 1,815.21/x
  3. Step 3: Cross multiply
    3,047.45x = 4,570.49 × 1,815.21
  4. Step 4: Simplify right side
    3,047.45x = 8,296,396.03
  5. Step 5: Solve for x
    x = 8,296,396.03/3,047.45
  6. Step 6: Final answer
    x = 2,722.41

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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.