Home / 3,021.84-4,534.56-1,290.42

Finding the Fourth Proportional to 3,021.84, 4,534.56 and 1,290.42

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Solution

The fourth proportional to 3,021.84, 4,534.56 and 1,290.42 is: 1,936.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.84 : 4,534.56 = 1,290.42 : x
  2. Step 2: Convert to fraction form
    3,021.84/4,534.56 = 1,290.42/x
  3. Step 3: Cross multiply
    3,021.84x = 4,534.56 × 1,290.42
  4. Step 4: Simplify right side
    3,021.84x = 5,851,486.92
  5. Step 5: Solve for x
    x = 5,851,486.92/3,021.84
  6. Step 6: Final answer
    x = 1,936.40

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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.