Home / 3,086.80-4,259.58-1,907.68

Finding the Fourth Proportional to 3,086.80, 4,259.58 and 1,907.68

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Solution

The fourth proportional to 3,086.80, 4,259.58 and 1,907.68 is: 2,632.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.80 : 4,259.58 = 1,907.68 : x
  2. Step 2: Convert to fraction form
    3,086.80/4,259.58 = 1,907.68/x
  3. Step 3: Cross multiply
    3,086.80x = 4,259.58 × 1,907.68
  4. Step 4: Simplify right side
    3,086.80x = 8,125,915.57
  5. Step 5: Solve for x
    x = 8,125,915.57/3,086.80
  6. Step 6: Final answer
    x = 2,632.47

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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.