Home / 2,988.87-4,124.82-1,662.55

Finding the Fourth Proportional to 2,988.87, 4,124.82 and 1,662.55

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Solution

The fourth proportional to 2,988.87, 4,124.82 and 1,662.55 is: 2,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.87 : 4,124.82 = 1,662.55 : x
  2. Step 2: Convert to fraction form
    2,988.87/4,124.82 = 1,662.55/x
  3. Step 3: Cross multiply
    2,988.87x = 4,124.82 × 1,662.55
  4. Step 4: Simplify right side
    2,988.87x = 6,857,727.01
  5. Step 5: Solve for x
    x = 6,857,727.01/2,988.87
  6. Step 6: Final answer
    x = 2,294.42

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1.5x scale

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.