Home / 2,284.87-3,153.16-1,290.17

Finding the Fourth Proportional to 2,284.87, 3,153.16 and 1,290.17

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Solution

The fourth proportional to 2,284.87, 3,153.16 and 1,290.17 is: 1,780.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,284.87 : 3,153.16 = 1,290.17 : x
  2. Step 2: Convert to fraction form
    2,284.87/3,153.16 = 1,290.17/x
  3. Step 3: Cross multiply
    2,284.87x = 3,153.16 × 1,290.17
  4. Step 4: Simplify right side
    2,284.87x = 4,068,112.44
  5. Step 5: Solve for x
    x = 4,068,112.44/2,284.87
  6. Step 6: Final answer
    x = 1,780.46

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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.