Home / 1,572.22-2,169.43-942.60

Finding the Fourth Proportional to 1,572.22, 2,169.43 and 942.60

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Solution

The fourth proportional to 1,572.22, 2,169.43 and 942.60 is: 1,300.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572.22 : 2,169.43 = 942.60 : x
  2. Step 2: Convert to fraction form
    1,572.22/2,169.43 = 942.60/x
  3. Step 3: Cross multiply
    1,572.22x = 2,169.43 × 942.60
  4. Step 4: Simplify right side
    1,572.22x = 2,044,893.87
  5. Step 5: Solve for x
    x = 2,044,893.87/1,572.22
  6. Step 6: Final answer
    x = 1,300.65

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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.