Home / 1,370.09-1,892.39-1,360.49

Finding the Fourth Proportional to 1,370.09, 1,892.39 and 1,360.49

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Solution

The fourth proportional to 1,370.09, 1,892.39 and 1,360.49 is: 1,879.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370.09 : 1,892.39 = 1,360.49 : x
  2. Step 2: Convert to fraction form
    1,370.09/1,892.39 = 1,360.49/x
  3. Step 3: Cross multiply
    1,370.09x = 1,892.39 × 1,360.49
  4. Step 4: Simplify right side
    1,370.09x = 2,574,577.67
  5. Step 5: Solve for x
    x = 2,574,577.67/1,370.09
  6. Step 6: Final answer
    x = 1,879.13

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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.