Home / 2,988.63-4,124.44-1,729.74

Finding the Fourth Proportional to 2,988.63, 4,124.44 and 1,729.74

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Solution

The fourth proportional to 2,988.63, 4,124.44 and 1,729.74 is: 2,387.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.63 : 4,124.44 = 1,729.74 : x
  2. Step 2: Convert to fraction form
    2,988.63/4,124.44 = 1,729.74/x
  3. Step 3: Cross multiply
    2,988.63x = 4,124.44 × 1,729.74
  4. Step 4: Simplify right side
    2,988.63x = 7,134,200.20
  5. Step 5: Solve for x
    x = 7,134,200.20/2,988.63
  6. Step 6: Final answer
    x = 2,387.12

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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.