Home / 5,739.39-7,921.40-3,349.76

Finding the Fourth Proportional to 5,739.39, 7,921.40 and 3,349.76

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Solution

The fourth proportional to 5,739.39, 7,921.40 and 3,349.76 is: 4,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.39 : 7,921.40 = 3,349.76 : x
  2. Step 2: Convert to fraction form
    5,739.39/7,921.40 = 3,349.76/x
  3. Step 3: Cross multiply
    5,739.39x = 7,921.40 × 3,349.76
  4. Step 4: Simplify right side
    5,739.39x = 26,534,732.51
  5. Step 5: Solve for x
    x = 26,534,732.51/5,739.39
  6. Step 6: Final answer
    x = 4,623.27

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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.