Home / 2,988.68-4,124.14-1,729.83

Finding the Fourth Proportional to 2,988.68, 4,124.14 and 1,729.83

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Solution

The fourth proportional to 2,988.68, 4,124.14 and 1,729.83 is: 2,387.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.68 : 4,124.14 = 1,729.83 : x
  2. Step 2: Convert to fraction form
    2,988.68/4,124.14 = 1,729.83/x
  3. Step 3: Cross multiply
    2,988.68x = 4,124.14 × 1,729.83
  4. Step 4: Simplify right side
    2,988.68x = 7,134,056.77
  5. Step 5: Solve for x
    x = 7,134,056.77/2,988.68
  6. Step 6: Final answer
    x = 2,387.02

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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.