Home / 7,118.28-9,824.49-4,135.05

Finding the Fourth Proportional to 7,118.28, 9,824.49 and 4,135.05

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Solution

The fourth proportional to 7,118.28, 9,824.49 and 4,135.05 is: 5,707.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.28 : 9,824.49 = 4,135.05 : x
  2. Step 2: Convert to fraction form
    7,118.28/9,824.49 = 4,135.05/x
  3. Step 3: Cross multiply
    7,118.28x = 9,824.49 × 4,135.05
  4. Step 4: Simplify right side
    7,118.28x = 40,624,757.37
  5. Step 5: Solve for x
    x = 40,624,757.37/7,118.28
  6. Step 6: Final answer
    x = 5,707.10

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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.