Home / 3,084.06-4,256.07-1,686.90

Finding the Fourth Proportional to 3,084.06, 4,256.07 and 1,686.90

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Solution

The fourth proportional to 3,084.06, 4,256.07 and 1,686.90 is: 2,327.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.06 : 4,256.07 = 1,686.90 : x
  2. Step 2: Convert to fraction form
    3,084.06/4,256.07 = 1,686.90/x
  3. Step 3: Cross multiply
    3,084.06x = 4,256.07 × 1,686.90
  4. Step 4: Simplify right side
    3,084.06x = 7,179,564.48
  5. Step 5: Solve for x
    x = 7,179,564.48/3,084.06
  6. Step 6: Final answer
    x = 2,327.96

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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.