Home / 2,988.88-4,124.40-1,662.16

Finding the Fourth Proportional to 2,988.88, 4,124.40 and 1,662.16

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Solution

The fourth proportional to 2,988.88, 4,124.40 and 1,662.16 is: 2,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.88 : 4,124.40 = 1,662.16 : x
  2. Step 2: Convert to fraction form
    2,988.88/4,124.40 = 1,662.16/x
  3. Step 3: Cross multiply
    2,988.88x = 4,124.40 × 1,662.16
  4. Step 4: Simplify right side
    2,988.88x = 6,855,412.70
  5. Step 5: Solve for x
    x = 6,855,412.70/2,988.88
  6. Step 6: Final answer
    x = 2,293.64

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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.