Home / 2,153.40-2,971.44-1,269.36

Finding the Fourth Proportional to 2,153.40, 2,971.44 and 1,269.36

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Solution

The fourth proportional to 2,153.40, 2,971.44 and 1,269.36 is: 1,751.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.40 : 2,971.44 = 1,269.36 : x
  2. Step 2: Convert to fraction form
    2,153.40/2,971.44 = 1,269.36/x
  3. Step 3: Cross multiply
    2,153.40x = 2,971.44 × 1,269.36
  4. Step 4: Simplify right side
    2,153.40x = 3,771,827.08
  5. Step 5: Solve for x
    x = 3,771,827.08/2,153.40
  6. Step 6: Final answer
    x = 1,751.57

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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.