Home / 1,571.50-2,357.19-401.49

Finding the Fourth Proportional to 1,571.50, 2,357.19 and 401.49

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Solution

The fourth proportional to 1,571.50, 2,357.19 and 401.49 is: 602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.50 : 2,357.19 = 401.49 : x
  2. Step 2: Convert to fraction form
    1,571.50/2,357.19 = 401.49/x
  3. Step 3: Cross multiply
    1,571.50x = 2,357.19 × 401.49
  4. Step 4: Simplify right side
    1,571.50x = 946,388.21
  5. Step 5: Solve for x
    x = 946,388.21/1,571.50
  6. Step 6: Final answer
    x = 602.22

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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.