Home / 1,231.32-1,841.58-1,071.48

Finding the Fourth Proportional to 1,231.32, 1,841.58 and 1,071.48

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Solution

The fourth proportional to 1,231.32, 1,841.58 and 1,071.48 is: 1,602.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231.32 : 1,841.58 = 1,071.48 : x
  2. Step 2: Convert to fraction form
    1,231.32/1,841.58 = 1,071.48/x
  3. Step 3: Cross multiply
    1,231.32x = 1,841.58 × 1,071.48
  4. Step 4: Simplify right side
    1,231.32x = 1,973,216.14
  5. Step 5: Solve for x
    x = 1,973,216.14/1,231.32
  6. Step 6: Final answer
    x = 1,602.52

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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.