Home / 1,856.12-2,560.35-1,099.64

Finding the Fourth Proportional to 1,856.12, 2,560.35 and 1,099.64

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Solution

The fourth proportional to 1,856.12, 2,560.35 and 1,099.64 is: 1,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856.12 : 2,560.35 = 1,099.64 : x
  2. Step 2: Convert to fraction form
    1,856.12/2,560.35 = 1,099.64/x
  3. Step 3: Cross multiply
    1,856.12x = 2,560.35 × 1,099.64
  4. Step 4: Simplify right side
    1,856.12x = 2,815,454.60
  5. Step 5: Solve for x
    x = 2,815,454.60/1,856.12
  6. Step 6: Final answer
    x = 1,516.85

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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.