Home / 2,848.80-3,929.94-2,455.14

Finding the Fourth Proportional to 2,848.80, 3,929.94 and 2,455.14

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Solution

The fourth proportional to 2,848.80, 3,929.94 and 2,455.14 is: 3,386.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,848.80 : 3,929.94 = 2,455.14 : x
  2. Step 2: Convert to fraction form
    2,848.80/3,929.94 = 2,455.14/x
  3. Step 3: Cross multiply
    2,848.80x = 3,929.94 × 2,455.14
  4. Step 4: Simplify right side
    2,848.80x = 9,648,552.89
  5. Step 5: Solve for x
    x = 9,648,552.89/2,848.80
  6. Step 6: Final answer
    x = 3,386.88

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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.