Home / 3,857.38-5,783.73-1,259.98

Finding the Fourth Proportional to 3,857.38, 5,783.73 and 1,259.98

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Solution

The fourth proportional to 3,857.38, 5,783.73 and 1,259.98 is: 1,889.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,857.38 : 5,783.73 = 1,259.98 : x
  2. Step 2: Convert to fraction form
    3,857.38/5,783.73 = 1,259.98/x
  3. Step 3: Cross multiply
    3,857.38x = 5,783.73 × 1,259.98
  4. Step 4: Simplify right side
    3,857.38x = 7,287,384.13
  5. Step 5: Solve for x
    x = 7,287,384.13/3,857.38
  6. Step 6: Final answer
    x = 1,889.21

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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.