Home / 2,779.73-3,837.43-2,148.83

Finding the Fourth Proportional to 2,779.73, 3,837.43 and 2,148.83

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Solution

The fourth proportional to 2,779.73, 3,837.43 and 2,148.83 is: 2,966.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,779.73 : 3,837.43 = 2,148.83 : x
  2. Step 2: Convert to fraction form
    2,779.73/3,837.43 = 2,148.83/x
  3. Step 3: Cross multiply
    2,779.73x = 3,837.43 × 2,148.83
  4. Step 4: Simplify right side
    2,779.73x = 8,245,984.71
  5. Step 5: Solve for x
    x = 8,245,984.71/2,779.73
  6. Step 6: Final answer
    x = 2,966.47

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1.5x scale

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.