Home / 2,153.63-2,972.58-1,270.03

Finding the Fourth Proportional to 2,153.63, 2,972.58 and 1,270.03

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Solution

The fourth proportional to 2,153.63, 2,972.58 and 1,270.03 is: 1,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.63 : 2,972.58 = 1,270.03 : x
  2. Step 2: Convert to fraction form
    2,153.63/2,972.58 = 1,270.03/x
  3. Step 3: Cross multiply
    2,153.63x = 2,972.58 × 1,270.03
  4. Step 4: Simplify right side
    2,153.63x = 3,775,250.91
  5. Step 5: Solve for x
    x = 3,775,250.91/2,153.63
  6. Step 6: Final answer
    x = 1,752.97

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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.