Home / 5,072.96-7,610.49-1,788.35

Finding the Fourth Proportional to 5,072.96, 7,610.49 and 1,788.35

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Solution

The fourth proportional to 5,072.96, 7,610.49 and 1,788.35 is: 2,682.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,072.96 : 7,610.49 = 1,788.35 : x
  2. Step 2: Convert to fraction form
    5,072.96/7,610.49 = 1,788.35/x
  3. Step 3: Cross multiply
    5,072.96x = 7,610.49 × 1,788.35
  4. Step 4: Simplify right side
    5,072.96x = 13,610,181.74
  5. Step 5: Solve for x
    x = 13,610,181.74/5,072.96
  6. Step 6: Final answer
    x = 2,682.89

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1.5x scale

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.