Home / 3,485-5,227.78-1,176.50

Finding the Fourth Proportional to 3,485, 5,227.78 and 1,176.50

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Solution

The fourth proportional to 3,485, 5,227.78 and 1,176.50 is: 1,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485 : 5,227.78 = 1,176.50 : x
  2. Step 2: Convert to fraction form
    3,485/5,227.78 = 1,176.50/x
  3. Step 3: Cross multiply
    3,485x = 5,227.78 × 1,176.50
  4. Step 4: Simplify right side
    3,485x = 6,150,483.17
  5. Step 5: Solve for x
    x = 6,150,483.17/3,485
  6. Step 6: Final answer
    x = 1,764.84

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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.