Home / 3,484.15-4,808.31-1,912.25

Finding the Fourth Proportional to 3,484.15, 4,808.31 and 1,912.25

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Solution

The fourth proportional to 3,484.15, 4,808.31 and 1,912.25 is: 2,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.15 : 4,808.31 = 1,912.25 : x
  2. Step 2: Convert to fraction form
    3,484.15/4,808.31 = 1,912.25/x
  3. Step 3: Cross multiply
    3,484.15x = 4,808.31 × 1,912.25
  4. Step 4: Simplify right side
    3,484.15x = 9,194,690.80
  5. Step 5: Solve for x
    x = 9,194,690.80/3,484.15
  6. Step 6: Final answer
    x = 2,639.01

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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.