Home / 1,537.53-2,120.96-1,270.39

Finding the Fourth Proportional to 1,537.53, 2,120.96 and 1,270.39

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Solution

The fourth proportional to 1,537.53, 2,120.96 and 1,270.39 is: 1,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.53 : 2,120.96 = 1,270.39 : x
  2. Step 2: Convert to fraction form
    1,537.53/2,120.96 = 1,270.39/x
  3. Step 3: Cross multiply
    1,537.53x = 2,120.96 × 1,270.39
  4. Step 4: Simplify right side
    1,537.53x = 2,694,446.37
  5. Step 5: Solve for x
    x = 2,694,446.37/1,537.53
  6. Step 6: Final answer
    x = 1,752.45

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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.