Home / 3,439.56-4,745.12-2,690.51

Finding the Fourth Proportional to 3,439.56, 4,745.12 and 2,690.51

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Solution

The fourth proportional to 3,439.56, 4,745.12 and 2,690.51 is: 3,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.56 : 4,745.12 = 2,690.51 : x
  2. Step 2: Convert to fraction form
    3,439.56/4,745.12 = 2,690.51/x
  3. Step 3: Cross multiply
    3,439.56x = 4,745.12 × 2,690.51
  4. Step 4: Simplify right side
    3,439.56x = 12,766,779.36
  5. Step 5: Solve for x
    x = 12,766,779.36/3,439.56
  6. Step 6: Final answer
    x = 3,711.75

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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.