Home / 2,988.65-4,124.48-1,662.38

Finding the Fourth Proportional to 2,988.65, 4,124.48 and 1,662.38

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Solution

The fourth proportional to 2,988.65, 4,124.48 and 1,662.38 is: 2,294.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.65 : 4,124.48 = 1,662.38 : x
  2. Step 2: Convert to fraction form
    2,988.65/4,124.48 = 1,662.38/x
  3. Step 3: Cross multiply
    2,988.65x = 4,124.48 × 1,662.38
  4. Step 4: Simplify right side
    2,988.65x = 6,856,436.60
  5. Step 5: Solve for x
    x = 6,856,436.60/2,988.65
  6. Step 6: Final answer
    x = 2,294.16

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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.