Home / 1,519.45-2,096.95-856.36

Finding the Fourth Proportional to 1,519.45, 2,096.95 and 856.36

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Solution

The fourth proportional to 1,519.45, 2,096.95 and 856.36 is: 1,181.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.45 : 2,096.95 = 856.36 : x
  2. Step 2: Convert to fraction form
    1,519.45/2,096.95 = 856.36/x
  3. Step 3: Cross multiply
    1,519.45x = 2,096.95 × 856.36
  4. Step 4: Simplify right side
    1,519.45x = 1,795,744.10
  5. Step 5: Solve for x
    x = 1,795,744.10/1,519.45
  6. Step 6: Final answer
    x = 1,181.84

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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.