Home / 2,284.84-3,153.08-1,290.12

Finding the Fourth Proportional to 2,284.84, 3,153.08 and 1,290.12

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Solution

The fourth proportional to 2,284.84, 3,153.08 and 1,290.12 is: 1,780.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.84 : 3,153.08 = 1,290.12 : x
  2. Step 2: Convert to fraction form
    2,284.84/3,153.08 = 1,290.12/x
  3. Step 3: Cross multiply
    2,284.84x = 3,153.08 × 1,290.12
  4. Step 4: Simplify right side
    2,284.84x = 4,067,851.57
  5. Step 5: Solve for x
    x = 4,067,851.57/2,284.84
  6. Step 6: Final answer
    x = 1,780.37

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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.