Home / 3,087.68-4,259.52-1,908.32

Finding the Fourth Proportional to 3,087.68, 4,259.52 and 1,908.32

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Solution

The fourth proportional to 3,087.68, 4,259.52 and 1,908.32 is: 2,632.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,087.68 : 4,259.52 = 1,908.32 : x
  2. Step 2: Convert to fraction form
    3,087.68/4,259.52 = 1,908.32/x
  3. Step 3: Cross multiply
    3,087.68x = 4,259.52 × 1,908.32
  4. Step 4: Simplify right side
    3,087.68x = 8,128,527.21
  5. Step 5: Solve for x
    x = 8,128,527.21/3,087.68
  6. Step 6: Final answer
    x = 2,632.57

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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.