Home / 2,988.33-4,124.20-1,729.32

Finding the Fourth Proportional to 2,988.33, 4,124.20 and 1,729.32

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Solution

The fourth proportional to 2,988.33, 4,124.20 and 1,729.32 is: 2,386.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.33 : 4,124.20 = 1,729.32 : x
  2. Step 2: Convert to fraction form
    2,988.33/4,124.20 = 1,729.32/x
  3. Step 3: Cross multiply
    2,988.33x = 4,124.20 × 1,729.32
  4. Step 4: Simplify right side
    2,988.33x = 7,132,087.09
  5. Step 5: Solve for x
    x = 7,132,087.09/2,988.33
  6. Step 6: Final answer
    x = 2,386.65

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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.