Home / 2,588.20-3,880.20-1,126.36

Finding the Fourth Proportional to 2,588.20, 3,880.20 and 1,126.36

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Solution

The fourth proportional to 2,588.20, 3,880.20 and 1,126.36 is: 1,688.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,588.20 : 3,880.20 = 1,126.36 : x
  2. Step 2: Convert to fraction form
    2,588.20/3,880.20 = 1,126.36/x
  3. Step 3: Cross multiply
    2,588.20x = 3,880.20 × 1,126.36
  4. Step 4: Simplify right side
    2,588.20x = 4,370,502.07
  5. Step 5: Solve for x
    x = 4,370,502.07/2,588.20
  6. Step 6: Final answer
    x = 1,688.63

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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.