Home / 3,484.36-4,808.37-1,912.45

Finding the Fourth Proportional to 3,484.36, 4,808.37 and 1,912.45

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Solution

The fourth proportional to 3,484.36, 4,808.37 and 1,912.45 is: 2,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,484.36 : 4,808.37 = 1,912.45 : x
  2. Step 2: Convert to fraction form
    3,484.36/4,808.37 = 1,912.45/x
  3. Step 3: Cross multiply
    3,484.36x = 4,808.37 × 1,912.45
  4. Step 4: Simplify right side
    3,484.36x = 9,195,767.21
  5. Step 5: Solve for x
    x = 9,195,767.21/3,484.36
  6. Step 6: Final answer
    x = 2,639.16

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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.