Home / 3,485.22-4,809.56-1,913.36

Finding the Fourth Proportional to 3,485.22, 4,809.56 and 1,913.36

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Solution

The fourth proportional to 3,485.22, 4,809.56 and 1,913.36 is: 2,640.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.22 : 4,809.56 = 1,913.36 : x
  2. Step 2: Convert to fraction form
    3,485.22/4,809.56 = 1,913.36/x
  3. Step 3: Cross multiply
    3,485.22x = 4,809.56 × 1,913.36
  4. Step 4: Simplify right side
    3,485.22x = 9,202,419.72
  5. Step 5: Solve for x
    x = 9,202,419.72/3,485.22
  6. Step 6: Final answer
    x = 2,640.41

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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.