Home / 1,571.52-2,357.28-401.61

Finding the Fourth Proportional to 1,571.52, 2,357.28 and 401.61

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Solution

The fourth proportional to 1,571.52, 2,357.28 and 401.61 is: 602.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.52 : 2,357.28 = 401.61 : x
  2. Step 2: Convert to fraction form
    1,571.52/2,357.28 = 401.61/x
  3. Step 3: Cross multiply
    1,571.52x = 2,357.28 × 401.61
  4. Step 4: Simplify right side
    1,571.52x = 946,707.22
  5. Step 5: Solve for x
    x = 946,707.22/1,571.52
  6. Step 6: Final answer
    x = 602.42

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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.