Home / 2,141.22-2,955.74-1,395.81

Finding the Fourth Proportional to 2,141.22, 2,955.74 and 1,395.81

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Solution

The fourth proportional to 2,141.22, 2,955.74 and 1,395.81 is: 1,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,141.22 : 2,955.74 = 1,395.81 : x
  2. Step 2: Convert to fraction form
    2,141.22/2,955.74 = 1,395.81/x
  3. Step 3: Cross multiply
    2,141.22x = 2,955.74 × 1,395.81
  4. Step 4: Simplify right side
    2,141.22x = 4,125,644.47
  5. Step 5: Solve for x
    x = 4,125,644.47/2,141.22
  6. Step 6: Final answer
    x = 1,926.77

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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.