Home / 3,684.78-5,526.61-1,219.70

Finding the Fourth Proportional to 3,684.78, 5,526.61 and 1,219.70

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Solution

The fourth proportional to 3,684.78, 5,526.61 and 1,219.70 is: 1,829.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.78 : 5,526.61 = 1,219.70 : x
  2. Step 2: Convert to fraction form
    3,684.78/5,526.61 = 1,219.70/x
  3. Step 3: Cross multiply
    3,684.78x = 5,526.61 × 1,219.70
  4. Step 4: Simplify right side
    3,684.78x = 6,740,806.22
  5. Step 5: Solve for x
    x = 6,740,806.22/3,684.78
  6. Step 6: Final answer
    x = 1,829.36

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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.