Home / 1,958.65-2,706.44-1,542.20

Finding the Fourth Proportional to 1,958.65, 2,706.44 and 1,542.20

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Solution

The fourth proportional to 1,958.65, 2,706.44 and 1,542.20 is: 2,130.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,958.65 : 2,706.44 = 1,542.20 : x
  2. Step 2: Convert to fraction form
    1,958.65/2,706.44 = 1,542.20/x
  3. Step 3: Cross multiply
    1,958.65x = 2,706.44 × 1,542.20
  4. Step 4: Simplify right side
    1,958.65x = 4,173,850.52
  5. Step 5: Solve for x
    x = 4,173,850.52/1,958.65
  6. Step 6: Final answer
    x = 2,130.99

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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.