Home / 3,384.63-4,662.70-2,783.21

Finding the Fourth Proportional to 3,384.63, 4,662.70 and 2,783.21

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Solution

The fourth proportional to 3,384.63, 4,662.70 and 2,783.21 is: 3,834.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,384.63 : 4,662.70 = 2,783.21 : x
  2. Step 2: Convert to fraction form
    3,384.63/4,662.70 = 2,783.21/x
  3. Step 3: Cross multiply
    3,384.63x = 4,662.70 × 2,783.21
  4. Step 4: Simplify right side
    3,384.63x = 12,977,243.00
  5. Step 5: Solve for x
    x = 12,977,243.00/3,384.63
  6. Step 6: Final answer
    x = 3,834.17

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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.