Home / 2,749.08-3,792.78-1,815.96

Finding the Fourth Proportional to 2,749.08, 3,792.78 and 1,815.96

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Solution

The fourth proportional to 2,749.08, 3,792.78 and 1,815.96 is: 2,505.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.08 : 3,792.78 = 1,815.96 : x
  2. Step 2: Convert to fraction form
    2,749.08/3,792.78 = 1,815.96/x
  3. Step 3: Cross multiply
    2,749.08x = 3,792.78 × 1,815.96
  4. Step 4: Simplify right side
    2,749.08x = 6,887,536.77
  5. Step 5: Solve for x
    x = 6,887,536.77/2,749.08
  6. Step 6: Final answer
    x = 2,505.40

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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.