Home / 4,084.40-6,121.80-1,888.49

Finding the Fourth Proportional to 4,084.40, 6,121.80 and 1,888.49

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Solution

The fourth proportional to 4,084.40, 6,121.80 and 1,888.49 is: 2,830.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,084.40 : 6,121.80 = 1,888.49 : x
  2. Step 2: Convert to fraction form
    4,084.40/6,121.80 = 1,888.49/x
  3. Step 3: Cross multiply
    4,084.40x = 6,121.80 × 1,888.49
  4. Step 4: Simplify right side
    4,084.40x = 11,560,927.47
  5. Step 5: Solve for x
    x = 11,560,927.47/4,084.40
  6. Step 6: Final answer
    x = 2,830.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.