Home / 2,611.54-3,603.99-1,432.72

Finding the Fourth Proportional to 2,611.54, 3,603.99 and 1,432.72

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Solution

The fourth proportional to 2,611.54, 3,603.99 and 1,432.72 is: 1,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.54 : 3,603.99 = 1,432.72 : x
  2. Step 2: Convert to fraction form
    2,611.54/3,603.99 = 1,432.72/x
  3. Step 3: Cross multiply
    2,611.54x = 3,603.99 × 1,432.72
  4. Step 4: Simplify right side
    2,611.54x = 5,163,508.55
  5. Step 5: Solve for x
    x = 5,163,508.55/2,611.54
  6. Step 6: Final answer
    x = 1,977.19

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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.