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Finding the Fourth Proportional to 2,829.56, 3,905 and 1,570.60

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Solution

The fourth proportional to 2,829.56, 3,905 and 1,570.60 is: 2,167.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.56 : 3,905 = 1,570.60 : x
  2. Step 2: Convert to fraction form
    2,829.56/3,905 = 1,570.60/x
  3. Step 3: Cross multiply
    2,829.56x = 3,905 × 1,570.60
  4. Step 4: Simplify right side
    2,829.56x = 6,133,193
  5. Step 5: Solve for x
    x = 6,133,193/2,829.56
  6. Step 6: Final answer
    x = 2,167.54

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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.