Home / 2,962.26-4,089.36-1,969.20

Finding the Fourth Proportional to 2,962.26, 4,089.36 and 1,969.20

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Solution

The fourth proportional to 2,962.26, 4,089.36 and 1,969.20 is: 2,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,962.26 : 4,089.36 = 1,969.20 : x
  2. Step 2: Convert to fraction form
    2,962.26/4,089.36 = 1,969.20/x
  3. Step 3: Cross multiply
    2,962.26x = 4,089.36 × 1,969.20
  4. Step 4: Simplify right side
    2,962.26x = 8,052,767.71
  5. Step 5: Solve for x
    x = 8,052,767.71/2,962.26
  6. Step 6: Final answer
    x = 2,718.45

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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.