Home / 2,979.89-4,111.56-1,800.93

Finding the Fourth Proportional to 2,979.89, 4,111.56 and 1,800.93

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Solution

The fourth proportional to 2,979.89, 4,111.56 and 1,800.93 is: 2,484.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,979.89 : 4,111.56 = 1,800.93 : x
  2. Step 2: Convert to fraction form
    2,979.89/4,111.56 = 1,800.93/x
  3. Step 3: Cross multiply
    2,979.89x = 4,111.56 × 1,800.93
  4. Step 4: Simplify right side
    2,979.89x = 7,404,647.17
  5. Step 5: Solve for x
    x = 7,404,647.17/2,979.89
  6. Step 6: Final answer
    x = 2,484.87

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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.