Home / 2,611.63-3,604.08-1,432.75

Finding the Fourth Proportional to 2,611.63, 3,604.08 and 1,432.75

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Solution

The fourth proportional to 2,611.63, 3,604.08 and 1,432.75 is: 1,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.63 : 3,604.08 = 1,432.75 : x
  2. Step 2: Convert to fraction form
    2,611.63/3,604.08 = 1,432.75/x
  3. Step 3: Cross multiply
    2,611.63x = 3,604.08 × 1,432.75
  4. Step 4: Simplify right side
    2,611.63x = 5,163,745.62
  5. Step 5: Solve for x
    x = 5,163,745.62/2,611.63
  6. Step 6: Final answer
    x = 1,977.21

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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.