Home / 3,289.41-4,931.55-1,645.11

Finding the Fourth Proportional to 3,289.41, 4,931.55 and 1,645.11

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Solution

The fourth proportional to 3,289.41, 4,931.55 and 1,645.11 is: 2,466.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,289.41 : 4,931.55 = 1,645.11 : x
  2. Step 2: Convert to fraction form
    3,289.41/4,931.55 = 1,645.11/x
  3. Step 3: Cross multiply
    3,289.41x = 4,931.55 × 1,645.11
  4. Step 4: Simplify right side
    3,289.41x = 8,112,942.22
  5. Step 5: Solve for x
    x = 8,112,942.22/3,289.41
  6. Step 6: Final answer
    x = 2,466.38

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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.