Home / 1,968.06-2,715.93-1,071.80

Finding the Fourth Proportional to 1,968.06, 2,715.93 and 1,071.80

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Solution

The fourth proportional to 1,968.06, 2,715.93 and 1,071.80 is: 1,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,968.06 : 2,715.93 = 1,071.80 : x
  2. Step 2: Convert to fraction form
    1,968.06/2,715.93 = 1,071.80/x
  3. Step 3: Cross multiply
    1,968.06x = 2,715.93 × 1,071.80
  4. Step 4: Simplify right side
    1,968.06x = 2,910,933.77
  5. Step 5: Solve for x
    x = 2,910,933.77/1,968.06
  6. Step 6: Final answer
    x = 1,479.09

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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.