Home / 2,571.23-3,548.31-1,392.32

Finding the Fourth Proportional to 2,571.23, 3,548.31 and 1,392.32

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Solution

The fourth proportional to 2,571.23, 3,548.31 and 1,392.32 is: 1,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,571.23 : 3,548.31 = 1,392.32 : x
  2. Step 2: Convert to fraction form
    2,571.23/3,548.31 = 1,392.32/x
  3. Step 3: Cross multiply
    2,571.23x = 3,548.31 × 1,392.32
  4. Step 4: Simplify right side
    2,571.23x = 4,940,365.24
  5. Step 5: Solve for x
    x = 4,940,365.24/2,571.23
  6. Step 6: Final answer
    x = 1,921.40

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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.