Home / 3,485.14-4,809.51-1,913.23

Finding the Fourth Proportional to 3,485.14, 4,809.51 and 1,913.23

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Solution

The fourth proportional to 3,485.14, 4,809.51 and 1,913.23 is: 2,640.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,485.14 : 4,809.51 = 1,913.23 : x
  2. Step 2: Convert to fraction form
    3,485.14/4,809.51 = 1,913.23/x
  3. Step 3: Cross multiply
    3,485.14x = 4,809.51 × 1,913.23
  4. Step 4: Simplify right side
    3,485.14x = 9,201,698.82
  5. Step 5: Solve for x
    x = 9,201,698.82/3,485.14
  6. Step 6: Final answer
    x = 2,640.27

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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.