Home / 2,848.88-3,929.64-2,511.92

Finding the Fourth Proportional to 2,848.88, 3,929.64 and 2,511.92

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Solution

The fourth proportional to 2,848.88, 3,929.64 and 2,511.92 is: 3,464.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.88 : 3,929.64 = 2,511.92 : x
  2. Step 2: Convert to fraction form
    2,848.88/3,929.64 = 2,511.92/x
  3. Step 3: Cross multiply
    2,848.88x = 3,929.64 × 2,511.92
  4. Step 4: Simplify right side
    2,848.88x = 9,870,941.31
  5. Step 5: Solve for x
    x = 9,870,941.31/2,848.88
  6. Step 6: Final answer
    x = 3,464.85

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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.