Home / 1,571.23-2,355.22-706.15

Finding the Fourth Proportional to 1,571.23, 2,355.22 and 706.15

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Solution

The fourth proportional to 1,571.23, 2,355.22 and 706.15 is: 1,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,571.23 : 2,355.22 = 706.15 : x
  2. Step 2: Convert to fraction form
    1,571.23/2,355.22 = 706.15/x
  3. Step 3: Cross multiply
    1,571.23x = 2,355.22 × 706.15
  4. Step 4: Simplify right side
    1,571.23x = 1,663,138.60
  5. Step 5: Solve for x
    x = 1,663,138.60/1,571.23
  6. Step 6: Final answer
    x = 1,058.49

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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.