Home / 2,988.45-4,124.15-1,662.16

Finding the Fourth Proportional to 2,988.45, 4,124.15 and 1,662.16

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Solution

The fourth proportional to 2,988.45, 4,124.15 and 1,662.16 is: 2,293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.45 : 4,124.15 = 1,662.16 : x
  2. Step 2: Convert to fraction form
    2,988.45/4,124.15 = 1,662.16/x
  3. Step 3: Cross multiply
    2,988.45x = 4,124.15 × 1,662.16
  4. Step 4: Simplify right side
    2,988.45x = 6,854,988.85
  5. Step 5: Solve for x
    x = 6,854,988.85/2,988.45
  6. Step 6: Final answer
    x = 2,293.83

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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.