Home / 7,049.25-10,574.93-2,118.78

Finding the Fourth Proportional to 7,049.25, 10,574.93 and 2,118.78

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Solution

The fourth proportional to 7,049.25, 10,574.93 and 2,118.78 is: 3,178.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,049.25 : 10,574.93 = 2,118.78 : x
  2. Step 2: Convert to fraction form
    7,049.25/10,574.93 = 2,118.78/x
  3. Step 3: Cross multiply
    7,049.25x = 10,574.93 × 2,118.78
  4. Step 4: Simplify right side
    7,049.25x = 22,405,955.48
  5. Step 5: Solve for x
    x = 22,405,955.48/7,049.25
  6. Step 6: Final answer
    x = 3,178.49

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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.