Home / 2,988.09-4,482.07-1,429.20

Finding the Fourth Proportional to 2,988.09, 4,482.07 and 1,429.20

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Solution

The fourth proportional to 2,988.09, 4,482.07 and 1,429.20 is: 2,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988.09 : 4,482.07 = 1,429.20 : x
  2. Step 2: Convert to fraction form
    2,988.09/4,482.07 = 1,429.20/x
  3. Step 3: Cross multiply
    2,988.09x = 4,482.07 × 1,429.20
  4. Step 4: Simplify right side
    2,988.09x = 6,405,770.87
  5. Step 5: Solve for x
    x = 6,405,770.87/2,988.09
  6. Step 6: Final answer
    x = 2,143.77

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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.