Home / 3,973.78-5,483.87-2,205.55

Finding the Fourth Proportional to 3,973.78, 5,483.87 and 2,205.55

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Solution

The fourth proportional to 3,973.78, 5,483.87 and 2,205.55 is: 3,043.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,973.78 : 5,483.87 = 2,205.55 : x
  2. Step 2: Convert to fraction form
    3,973.78/5,483.87 = 2,205.55/x
  3. Step 3: Cross multiply
    3,973.78x = 5,483.87 × 2,205.55
  4. Step 4: Simplify right side
    3,973.78x = 12,094,949.48
  5. Step 5: Solve for x
    x = 12,094,949.48/3,973.78
  6. Step 6: Final answer
    x = 3,043.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.