Home / 7,178.39-10,768.40-3,281.75

Finding the Fourth Proportional to 7,178.39, 10,768.40 and 3,281.75

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Solution

The fourth proportional to 7,178.39, 10,768.40 and 3,281.75 is: 4,923.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.39 : 10,768.40 = 3,281.75 : x
  2. Step 2: Convert to fraction form
    7,178.39/10,768.40 = 3,281.75/x
  3. Step 3: Cross multiply
    7,178.39x = 10,768.40 × 3,281.75
  4. Step 4: Simplify right side
    7,178.39x = 35,339,180.29
  5. Step 5: Solve for x
    x = 35,339,180.29/7,178.39
  6. Step 6: Final answer
    x = 4,923.00

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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.