Home / 3,084.10-4,256.05-1,686.85

Finding the Fourth Proportional to 3,084.10, 4,256.05 and 1,686.85

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Solution

The fourth proportional to 3,084.10, 4,256.05 and 1,686.85 is: 2,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,084.10 : 4,256.05 = 1,686.85 : x
  2. Step 2: Convert to fraction form
    3,084.10/4,256.05 = 1,686.85/x
  3. Step 3: Cross multiply
    3,084.10x = 4,256.05 × 1,686.85
  4. Step 4: Simplify right side
    3,084.10x = 7,179,303.09
  5. Step 5: Solve for x
    x = 7,179,303.09/3,084.10
  6. Step 6: Final answer
    x = 2,327.85

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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.