Home / 3,086.64-4,259.66-1,907.28

Finding the Fourth Proportional to 3,086.64, 4,259.66 and 1,907.28

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Solution

The fourth proportional to 3,086.64, 4,259.66 and 1,907.28 is: 2,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,086.64 : 4,259.66 = 1,907.28 : x
  2. Step 2: Convert to fraction form
    3,086.64/4,259.66 = 1,907.28/x
  3. Step 3: Cross multiply
    3,086.64x = 4,259.66 × 1,907.28
  4. Step 4: Simplify right side
    3,086.64x = 8,124,354.79
  5. Step 5: Solve for x
    x = 8,124,354.79/3,086.64
  6. Step 6: Final answer
    x = 2,632.10

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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.