Home / 5,126.43-7,685.03-1,838.75

Finding the Fourth Proportional to 5,126.43, 7,685.03 and 1,838.75

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Solution

The fourth proportional to 5,126.43, 7,685.03 and 1,838.75 is: 2,756.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.43 : 7,685.03 = 1,838.75 : x
  2. Step 2: Convert to fraction form
    5,126.43/7,685.03 = 1,838.75/x
  3. Step 3: Cross multiply
    5,126.43x = 7,685.03 × 1,838.75
  4. Step 4: Simplify right side
    5,126.43x = 14,130,847.97
  5. Step 5: Solve for x
    x = 14,130,847.97/5,126.43
  6. Step 6: Final answer
    x = 2,756.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.