Home / 1,959.32-2,703.35-1,172.81

Finding the Fourth Proportional to 1,959.32, 2,703.35 and 1,172.81

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Solution

The fourth proportional to 1,959.32, 2,703.35 and 1,172.81 is: 1,618.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,959.32 : 2,703.35 = 1,172.81 : x
  2. Step 2: Convert to fraction form
    1,959.32/2,703.35 = 1,172.81/x
  3. Step 3: Cross multiply
    1,959.32x = 2,703.35 × 1,172.81
  4. Step 4: Simplify right side
    1,959.32x = 3,170,505.33
  5. Step 5: Solve for x
    x = 3,170,505.33/1,959.32
  6. Step 6: Final answer
    x = 1,618.17

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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.