Home / 3,084.21-4,256.25-1,686.96

Finding the Fourth Proportional to 3,084.21, 4,256.25 and 1,686.96

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Solution

The fourth proportional to 3,084.21, 4,256.25 and 1,686.96 is: 2,328.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.21 : 4,256.25 = 1,686.96 : x
  2. Step 2: Convert to fraction form
    3,084.21/4,256.25 = 1,686.96/x
  3. Step 3: Cross multiply
    3,084.21x = 4,256.25 × 1,686.96
  4. Step 4: Simplify right side
    3,084.21x = 7,180,123.50
  5. Step 5: Solve for x
    x = 7,180,123.50/3,084.21
  6. Step 6: Final answer
    x = 2,328.03

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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.