Home / 2,588.22-3,883.95-1,289.79

Finding the Fourth Proportional to 2,588.22, 3,883.95 and 1,289.79

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Solution

The fourth proportional to 2,588.22, 3,883.95 and 1,289.79 is: 1,935.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.22 : 3,883.95 = 1,289.79 : x
  2. Step 2: Convert to fraction form
    2,588.22/3,883.95 = 1,289.79/x
  3. Step 3: Cross multiply
    2,588.22x = 3,883.95 × 1,289.79
  4. Step 4: Simplify right side
    2,588.22x = 5,009,479.87
  5. Step 5: Solve for x
    x = 5,009,479.87/2,588.22
  6. Step 6: Final answer
    x = 1,935.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.