Home / 6,090.40-8,402.70-3,964.96

Finding the Fourth Proportional to 6,090.40, 8,402.70 and 3,964.96

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Solution

The fourth proportional to 6,090.40, 8,402.70 and 3,964.96 is: 5,470.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,090.40 : 8,402.70 = 3,964.96 : x
  2. Step 2: Convert to fraction form
    6,090.40/8,402.70 = 3,964.96/x
  3. Step 3: Cross multiply
    6,090.40x = 8,402.70 × 3,964.96
  4. Step 4: Simplify right side
    6,090.40x = 33,316,369.39
  5. Step 5: Solve for x
    x = 33,316,369.39/6,090.40
  6. Step 6: Final answer
    x = 5,470.31

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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.