Home / 1,519.16-2,097.55-930.49

Finding the Fourth Proportional to 1,519.16, 2,097.55 and 930.49

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Solution

The fourth proportional to 1,519.16, 2,097.55 and 930.49 is: 1,284.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.16 : 2,097.55 = 930.49 : x
  2. Step 2: Convert to fraction form
    1,519.16/2,097.55 = 930.49/x
  3. Step 3: Cross multiply
    1,519.16x = 2,097.55 × 930.49
  4. Step 4: Simplify right side
    1,519.16x = 1,951,739.98
  5. Step 5: Solve for x
    x = 1,951,739.98/1,519.16
  6. Step 6: Final answer
    x = 1,284.75

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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.