Home / 2,988.69-4,124.57-1,809.87

Finding the Fourth Proportional to 2,988.69, 4,124.57 and 1,809.87

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Solution

The fourth proportional to 2,988.69, 4,124.57 and 1,809.87 is: 2,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.69 : 4,124.57 = 1,809.87 : x
  2. Step 2: Convert to fraction form
    2,988.69/4,124.57 = 1,809.87/x
  3. Step 3: Cross multiply
    2,988.69x = 4,124.57 × 1,809.87
  4. Step 4: Simplify right side
    2,988.69x = 7,464,926.46
  5. Step 5: Solve for x
    x = 7,464,926.46/2,988.69
  6. Step 6: Final answer
    x = 2,497.73

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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.