Home / 6,563.40-9,838.80-2,178.60

Finding the Fourth Proportional to 6,563.40, 9,838.80 and 2,178.60

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Solution

The fourth proportional to 6,563.40, 9,838.80 and 2,178.60 is: 3,265.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,563.40 : 9,838.80 = 2,178.60 : x
  2. Step 2: Convert to fraction form
    6,563.40/9,838.80 = 2,178.60/x
  3. Step 3: Cross multiply
    6,563.40x = 9,838.80 × 2,178.60
  4. Step 4: Simplify right side
    6,563.40x = 21,434,809.68
  5. Step 5: Solve for x
    x = 21,434,809.68/6,563.40
  6. Step 6: Final answer
    x = 3,265.81

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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.