Home / 2,962.36-4,086.70-1,720.12

Finding the Fourth Proportional to 2,962.36, 4,086.70 and 1,720.12

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Solution

The fourth proportional to 2,962.36, 4,086.70 and 1,720.12 is: 2,372.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.36 : 4,086.70 = 1,720.12 : x
  2. Step 2: Convert to fraction form
    2,962.36/4,086.70 = 1,720.12/x
  3. Step 3: Cross multiply
    2,962.36x = 4,086.70 × 1,720.12
  4. Step 4: Simplify right side
    2,962.36x = 7,029,614.40
  5. Step 5: Solve for x
    x = 7,029,614.40/2,962.36
  6. Step 6: Final answer
    x = 2,372.98

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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.