Home / 1,962.23-2,707.88-1,078.02

Finding the Fourth Proportional to 1,962.23, 2,707.88 and 1,078.02

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Solution

The fourth proportional to 1,962.23, 2,707.88 and 1,078.02 is: 1,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.23 : 2,707.88 = 1,078.02 : x
  2. Step 2: Convert to fraction form
    1,962.23/2,707.88 = 1,078.02/x
  3. Step 3: Cross multiply
    1,962.23x = 2,707.88 × 1,078.02
  4. Step 4: Simplify right side
    1,962.23x = 2,919,143.41
  5. Step 5: Solve for x
    x = 2,919,143.41/1,962.23
  6. Step 6: Final answer
    x = 1,487.67

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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.