Home / 2,270.09-3,132.64-1,387.37

Finding the Fourth Proportional to 2,270.09, 3,132.64 and 1,387.37

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Solution

The fourth proportional to 2,270.09, 3,132.64 and 1,387.37 is: 1,914.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,270.09 : 3,132.64 = 1,387.37 : x
  2. Step 2: Convert to fraction form
    2,270.09/3,132.64 = 1,387.37/x
  3. Step 3: Cross multiply
    2,270.09x = 3,132.64 × 1,387.37
  4. Step 4: Simplify right side
    2,270.09x = 4,346,130.76
  5. Step 5: Solve for x
    x = 4,346,130.76/2,270.09
  6. Step 6: Final answer
    x = 1,914.52

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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.