Home / 7,334.85-10,122.05-3,977.63

Finding the Fourth Proportional to 7,334.85, 10,122.05 and 3,977.63

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Solution

The fourth proportional to 7,334.85, 10,122.05 and 3,977.63 is: 5,489.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334.85 : 10,122.05 = 3,977.63 : x
  2. Step 2: Convert to fraction form
    7,334.85/10,122.05 = 3,977.63/x
  3. Step 3: Cross multiply
    7,334.85x = 10,122.05 × 3,977.63
  4. Step 4: Simplify right side
    7,334.85x = 40,261,769.74
  5. Step 5: Solve for x
    x = 40,261,769.74/7,334.85
  6. Step 6: Final answer
    x = 5,489.11

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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.