Home / 2,153.55-2,972.54-1,269.64

Finding the Fourth Proportional to 2,153.55, 2,972.54 and 1,269.64

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Solution

The fourth proportional to 2,153.55, 2,972.54 and 1,269.64 is: 1,752.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.55 : 2,972.54 = 1,269.64 : x
  2. Step 2: Convert to fraction form
    2,153.55/2,972.54 = 1,269.64/x
  3. Step 3: Cross multiply
    2,153.55x = 2,972.54 × 1,269.64
  4. Step 4: Simplify right side
    2,153.55x = 3,774,055.69
  5. Step 5: Solve for x
    x = 3,774,055.69/2,153.55
  6. Step 6: Final answer
    x = 1,752.48

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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.