Home / 3,923.44-5,415.36-2,430.48

Finding the Fourth Proportional to 3,923.44, 5,415.36 and 2,430.48

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Solution

The fourth proportional to 3,923.44, 5,415.36 and 2,430.48 is: 3,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,923.44 : 5,415.36 = 2,430.48 : x
  2. Step 2: Convert to fraction form
    3,923.44/5,415.36 = 2,430.48/x
  3. Step 3: Cross multiply
    3,923.44x = 5,415.36 × 2,430.48
  4. Step 4: Simplify right side
    3,923.44x = 13,161,924.17
  5. Step 5: Solve for x
    x = 13,161,924.17/3,923.44
  6. Step 6: Final answer
    x = 3,354.69

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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.