Home / 5,313.09-8,000.65-3,936.20

Finding the Fourth Proportional to 5,313.09, 8,000.65 and 3,936.20

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Solution

The fourth proportional to 5,313.09, 8,000.65 and 3,936.20 is: 5,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.09 : 8,000.65 = 3,936.20 : x
  2. Step 2: Convert to fraction form
    5,313.09/8,000.65 = 3,936.20/x
  3. Step 3: Cross multiply
    5,313.09x = 8,000.65 × 3,936.20
  4. Step 4: Simplify right side
    5,313.09x = 31,492,112.38
  5. Step 5: Solve for x
    x = 31,492,112.38/5,313.09
  6. Step 6: Final answer
    x = 5,927.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.