Home / 1,519.83-2,099.12-1,173.15

Finding the Fourth Proportional to 1,519.83, 2,099.12 and 1,173.15

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Solution

The fourth proportional to 1,519.83, 2,099.12 and 1,173.15 is: 1,620.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.83 : 2,099.12 = 1,173.15 : x
  2. Step 2: Convert to fraction form
    1,519.83/2,099.12 = 1,173.15/x
  3. Step 3: Cross multiply
    1,519.83x = 2,099.12 × 1,173.15
  4. Step 4: Simplify right side
    1,519.83x = 2,462,576.76
  5. Step 5: Solve for x
    x = 2,462,576.76/1,519.83
  6. Step 6: Final answer
    x = 1,620.30

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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.