Home / 1,571.15-2,353.53-1,261.33

Finding the Fourth Proportional to 1,571.15, 2,353.53 and 1,261.33

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Solution

The fourth proportional to 1,571.15, 2,353.53 and 1,261.33 is: 1,889.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.15 : 2,353.53 = 1,261.33 : x
  2. Step 2: Convert to fraction form
    1,571.15/2,353.53 = 1,261.33/x
  3. Step 3: Cross multiply
    1,571.15x = 2,353.53 × 1,261.33
  4. Step 4: Simplify right side
    1,571.15x = 2,968,566.23
  5. Step 5: Solve for x
    x = 2,968,566.23/1,571.15
  6. Step 6: Final answer
    x = 1,889.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.