Home / 2,153.92-2,971.44-1,269.31

Finding the Fourth Proportional to 2,153.92, 2,971.44 and 1,269.31

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Solution

The fourth proportional to 2,153.92, 2,971.44 and 1,269.31 is: 1,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.92 : 2,971.44 = 1,269.31 : x
  2. Step 2: Convert to fraction form
    2,153.92/2,971.44 = 1,269.31/x
  3. Step 3: Cross multiply
    2,153.92x = 2,971.44 × 1,269.31
  4. Step 4: Simplify right side
    2,153.92x = 3,771,678.51
  5. Step 5: Solve for x
    x = 3,771,678.51/2,153.92
  6. Step 6: Final answer
    x = 1,751.08

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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.