Home / 1,400.27-2,100.26-706.67

Finding the Fourth Proportional to 1,400.27, 2,100.26 and 706.67

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Solution

The fourth proportional to 1,400.27, 2,100.26 and 706.67 is: 1,059.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400.27 : 2,100.26 = 706.67 : x
  2. Step 2: Convert to fraction form
    1,400.27/2,100.26 = 706.67/x
  3. Step 3: Cross multiply
    1,400.27x = 2,100.26 × 706.67
  4. Step 4: Simplify right side
    1,400.27x = 1,484,176.70
  5. Step 5: Solve for x
    x = 1,484,176.70/1,400.27
  6. Step 6: Final answer
    x = 1,059.93

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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.