Home / 1,935.78-2,887.08-1,645.14

Finding the Fourth Proportional to 1,935.78, 2,887.08 and 1,645.14

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Solution

The fourth proportional to 1,935.78, 2,887.08 and 1,645.14 is: 2,453.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.78 : 2,887.08 = 1,645.14 : x
  2. Step 2: Convert to fraction form
    1,935.78/2,887.08 = 1,645.14/x
  3. Step 3: Cross multiply
    1,935.78x = 2,887.08 × 1,645.14
  4. Step 4: Simplify right side
    1,935.78x = 4,749,650.79
  5. Step 5: Solve for x
    x = 4,749,650.79/1,935.78
  6. Step 6: Final answer
    x = 2,453.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.