Home / 2,988.61-4,124.19-1,662.28

Finding the Fourth Proportional to 2,988.61, 4,124.19 and 1,662.28

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Solution

The fourth proportional to 2,988.61, 4,124.19 and 1,662.28 is: 2,293.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.61 : 4,124.19 = 1,662.28 : x
  2. Step 2: Convert to fraction form
    2,988.61/4,124.19 = 1,662.28/x
  3. Step 3: Cross multiply
    2,988.61x = 4,124.19 × 1,662.28
  4. Step 4: Simplify right side
    2,988.61x = 6,855,558.55
  5. Step 5: Solve for x
    x = 6,855,558.55/2,988.61
  6. Step 6: Final answer
    x = 2,293.90

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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.