Home / 2,911.34-4,019.56-2,124.02

Finding the Fourth Proportional to 2,911.34, 4,019.56 and 2,124.02

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Solution

The fourth proportional to 2,911.34, 4,019.56 and 2,124.02 is: 2,932.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.34 : 4,019.56 = 2,124.02 : x
  2. Step 2: Convert to fraction form
    2,911.34/4,019.56 = 2,124.02/x
  3. Step 3: Cross multiply
    2,911.34x = 4,019.56 × 2,124.02
  4. Step 4: Simplify right side
    2,911.34x = 8,537,625.83
  5. Step 5: Solve for x
    x = 8,537,625.83/2,911.34
  6. Step 6: Final answer
    x = 2,932.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.