Home / 1,962.09-2,707.68-1,077.88

Finding the Fourth Proportional to 1,962.09, 2,707.68 and 1,077.88

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Solution

The fourth proportional to 1,962.09, 2,707.68 and 1,077.88 is: 1,487.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.09 : 2,707.68 = 1,077.88 : x
  2. Step 2: Convert to fraction form
    1,962.09/2,707.68 = 1,077.88/x
  3. Step 3: Cross multiply
    1,962.09x = 2,707.68 × 1,077.88
  4. Step 4: Simplify right side
    1,962.09x = 2,918,549.38
  5. Step 5: Solve for x
    x = 2,918,549.38/1,962.09
  6. Step 6: Final answer
    x = 1,487.47

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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.