Home / 1,955.70-2,699.35-1,327.28

Finding the Fourth Proportional to 1,955.70, 2,699.35 and 1,327.28

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Solution

The fourth proportional to 1,955.70, 2,699.35 and 1,327.28 is: 1,831.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,955.70 : 2,699.35 = 1,327.28 : x
  2. Step 2: Convert to fraction form
    1,955.70/2,699.35 = 1,327.28/x
  3. Step 3: Cross multiply
    1,955.70x = 2,699.35 × 1,327.28
  4. Step 4: Simplify right side
    1,955.70x = 3,582,776.45
  5. Step 5: Solve for x
    x = 3,582,776.45/1,955.70
  6. Step 6: Final answer
    x = 1,831.97

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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.