Home / 7,323.78-10,106.85-4,137.21

Finding the Fourth Proportional to 7,323.78, 10,106.85 and 4,137.21

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Solution

The fourth proportional to 7,323.78, 10,106.85 and 4,137.21 is: 5,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.78 : 10,106.85 = 4,137.21 : x
  2. Step 2: Convert to fraction form
    7,323.78/10,106.85 = 4,137.21/x
  3. Step 3: Cross multiply
    7,323.78x = 10,106.85 × 4,137.21
  4. Step 4: Simplify right side
    7,323.78x = 41,814,160.89
  5. Step 5: Solve for x
    x = 41,814,160.89/7,323.78
  6. Step 6: Final answer
    x = 5,709.37

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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.