Home / 3,484.63-4,808.73-1,912.69

Finding the Fourth Proportional to 3,484.63, 4,808.73 and 1,912.69

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Solution

The fourth proportional to 3,484.63, 4,808.73 and 1,912.69 is: 2,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.63 : 4,808.73 = 1,912.69 : x
  2. Step 2: Convert to fraction form
    3,484.63/4,808.73 = 1,912.69/x
  3. Step 3: Cross multiply
    3,484.63x = 4,808.73 × 1,912.69
  4. Step 4: Simplify right side
    3,484.63x = 9,197,609.78
  5. Step 5: Solve for x
    x = 9,197,609.78/3,484.63
  6. Step 6: Final answer
    x = 2,639.48

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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.