Home / 1,889.63-2,607.28-1,103.32

Finding the Fourth Proportional to 1,889.63, 2,607.28 and 1,103.32

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Solution

The fourth proportional to 1,889.63, 2,607.28 and 1,103.32 is: 1,522.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,889.63 : 2,607.28 = 1,103.32 : x
  2. Step 2: Convert to fraction form
    1,889.63/2,607.28 = 1,103.32/x
  3. Step 3: Cross multiply
    1,889.63x = 2,607.28 × 1,103.32
  4. Step 4: Simplify right side
    1,889.63x = 2,876,664.17
  5. Step 5: Solve for x
    x = 2,876,664.17/1,889.63
  6. Step 6: Final answer
    x = 1,522.34

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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.