Home / 2,611.32-3,603.64-1,563.18

Finding the Fourth Proportional to 2,611.32, 3,603.64 and 1,563.18

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Solution

The fourth proportional to 2,611.32, 3,603.64 and 1,563.18 is: 2,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.32 : 3,603.64 = 1,563.18 : x
  2. Step 2: Convert to fraction form
    2,611.32/3,603.64 = 1,563.18/x
  3. Step 3: Cross multiply
    2,611.32x = 3,603.64 × 1,563.18
  4. Step 4: Simplify right side
    2,611.32x = 5,633,137.98
  5. Step 5: Solve for x
    x = 5,633,137.98/2,611.32
  6. Step 6: Final answer
    x = 2,157.20

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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.