Home / 1,442.08-2,167.44-1,269.28

Finding the Fourth Proportional to 1,442.08, 2,167.44 and 1,269.28

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Solution

The fourth proportional to 1,442.08, 2,167.44 and 1,269.28 is: 1,907.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.08 : 2,167.44 = 1,269.28 : x
  2. Step 2: Convert to fraction form
    1,442.08/2,167.44 = 1,269.28/x
  3. Step 3: Cross multiply
    1,442.08x = 2,167.44 × 1,269.28
  4. Step 4: Simplify right side
    1,442.08x = 2,751,088.24
  5. Step 5: Solve for x
    x = 2,751,088.24/1,442.08
  6. Step 6: Final answer
    x = 1,907.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.