Home / 1,621.44-2,235.06-1,533.96

Finding the Fourth Proportional to 1,621.44, 2,235.06 and 1,533.96

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Solution

The fourth proportional to 1,621.44, 2,235.06 and 1,533.96 is: 2,114.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,621.44 : 2,235.06 = 1,533.96 : x
  2. Step 2: Convert to fraction form
    1,621.44/2,235.06 = 1,533.96/x
  3. Step 3: Cross multiply
    1,621.44x = 2,235.06 × 1,533.96
  4. Step 4: Simplify right side
    1,621.44x = 3,428,492.64
  5. Step 5: Solve for x
    x = 3,428,492.64/1,621.44
  6. Step 6: Final answer
    x = 2,114.47

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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.