Home / 2,988.50-4,124.25-1,662.19

Finding the Fourth Proportional to 2,988.50, 4,124.25 and 1,662.19

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Solution

The fourth proportional to 2,988.50, 4,124.25 and 1,662.19 is: 2,293.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.50 : 4,124.25 = 1,662.19 : x
  2. Step 2: Convert to fraction form
    2,988.50/4,124.25 = 1,662.19/x
  3. Step 3: Cross multiply
    2,988.50x = 4,124.25 × 1,662.19
  4. Step 4: Simplify right side
    2,988.50x = 6,855,276.80
  5. Step 5: Solve for x
    x = 6,855,276.80/2,988.50
  6. Step 6: Final answer
    x = 2,293.89

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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.