Home / 1,639.50-2,263.64-1,010.85

Finding the Fourth Proportional to 1,639.50, 2,263.64 and 1,010.85

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Solution

The fourth proportional to 1,639.50, 2,263.64 and 1,010.85 is: 1,395.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639.50 : 2,263.64 = 1,010.85 : x
  2. Step 2: Convert to fraction form
    1,639.50/2,263.64 = 1,010.85/x
  3. Step 3: Cross multiply
    1,639.50x = 2,263.64 × 1,010.85
  4. Step 4: Simplify right side
    1,639.50x = 2,288,195.44
  5. Step 5: Solve for x
    x = 2,288,195.44/1,639.50
  6. Step 6: Final answer
    x = 1,395.67

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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.