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Finding the Fourth Proportional to 1,706.88, 2,356.22 and 1,147.67

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Solution

The fourth proportional to 1,706.88, 2,356.22 and 1,147.67 is: 1,584.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,706.88 : 2,356.22 = 1,147.67 : x
  2. Step 2: Convert to fraction form
    1,706.88/2,356.22 = 1,147.67/x
  3. Step 3: Cross multiply
    1,706.88x = 2,356.22 × 1,147.67
  4. Step 4: Simplify right side
    1,706.88x = 2,704,169.62
  5. Step 5: Solve for x
    x = 2,704,169.62/1,706.88
  6. Step 6: Final answer
    x = 1,584.28

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1.5x scale

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.