Home / 2,848.20-3,929.78-2,650.01

Finding the Fourth Proportional to 2,848.20, 3,929.78 and 2,650.01

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Solution

The fourth proportional to 2,848.20, 3,929.78 and 2,650.01 is: 3,656.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.20 : 3,929.78 = 2,650.01 : x
  2. Step 2: Convert to fraction form
    2,848.20/3,929.78 = 2,650.01/x
  3. Step 3: Cross multiply
    2,848.20x = 3,929.78 × 2,650.01
  4. Step 4: Simplify right side
    2,848.20x = 10,413,936.65
  5. Step 5: Solve for x
    x = 10,413,936.65/2,848.20
  6. Step 6: Final answer
    x = 3,656.32

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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.