Home / 2,153.25-2,971.55-1,269.81

Finding the Fourth Proportional to 2,153.25, 2,971.55 and 1,269.81

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Solution

The fourth proportional to 2,153.25, 2,971.55 and 1,269.81 is: 1,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.25 : 2,971.55 = 1,269.81 : x
  2. Step 2: Convert to fraction form
    2,153.25/2,971.55 = 1,269.81/x
  3. Step 3: Cross multiply
    2,153.25x = 2,971.55 × 1,269.81
  4. Step 4: Simplify right side
    2,153.25x = 3,773,307.08
  5. Step 5: Solve for x
    x = 3,773,307.08/2,153.25
  6. Step 6: Final answer
    x = 1,752.38

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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.