Home / 1,270.08-1,904.96-448.32

Finding the Fourth Proportional to 1,270.08, 1,904.96 and 448.32

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Solution

The fourth proportional to 1,270.08, 1,904.96 and 448.32 is: 672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.08 : 1,904.96 = 448.32 : x
  2. Step 2: Convert to fraction form
    1,270.08/1,904.96 = 448.32/x
  3. Step 3: Cross multiply
    1,270.08x = 1,904.96 × 448.32
  4. Step 4: Simplify right side
    1,270.08x = 854,031.67
  5. Step 5: Solve for x
    x = 854,031.67/1,270.08
  6. Step 6: Final answer
    x = 672.42

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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.