Home / 3,107.69-4,287.45-1,848.79

Finding the Fourth Proportional to 3,107.69, 4,287.45 and 1,848.79

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Solution

The fourth proportional to 3,107.69, 4,287.45 and 1,848.79 is: 2,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.69 : 4,287.45 = 1,848.79 : x
  2. Step 2: Convert to fraction form
    3,107.69/4,287.45 = 1,848.79/x
  3. Step 3: Cross multiply
    3,107.69x = 4,287.45 × 1,848.79
  4. Step 4: Simplify right side
    3,107.69x = 7,926,594.69
  5. Step 5: Solve for x
    x = 7,926,594.69/3,107.69
  6. Step 6: Final answer
    x = 2,550.64

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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.