Home / 3,090.46-4,264.80-1,693.21

Finding the Fourth Proportional to 3,090.46, 4,264.80 and 1,693.21

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Solution

The fourth proportional to 3,090.46, 4,264.80 and 1,693.21 is: 2,336.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,090.46 : 4,264.80 = 1,693.21 : x
  2. Step 2: Convert to fraction form
    3,090.46/4,264.80 = 1,693.21/x
  3. Step 3: Cross multiply
    3,090.46x = 4,264.80 × 1,693.21
  4. Step 4: Simplify right side
    3,090.46x = 7,221,202.01
  5. Step 5: Solve for x
    x = 7,221,202.01/3,090.46
  6. Step 6: Final answer
    x = 2,336.61

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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.