Home / 3,940.00-5,909.99-1,018.31

Finding the Fourth Proportional to 3,940.00, 5,909.99 and 1,018.31

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Solution

The fourth proportional to 3,940.00, 5,909.99 and 1,018.31 is: 1,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.00 : 5,909.99 = 1,018.31 : x
  2. Step 2: Convert to fraction form
    3,940.00/5,909.99 = 1,018.31/x
  3. Step 3: Cross multiply
    3,940.00x = 5,909.99 × 1,018.31
  4. Step 4: Simplify right side
    3,940.00x = 6,018,167.28
  5. Step 5: Solve for x
    x = 6,018,167.28/3,940.00
  6. Step 6: Final answer
    x = 1,527.45

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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.