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Finding the Fourth Proportional to 3,898.90, 5,846.91 and 1,706.50

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Solution

The fourth proportional to 3,898.90, 5,846.91 and 1,706.50 is: 2,559.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.90 : 5,846.91 = 1,706.50 : x
  2. Step 2: Convert to fraction form
    3,898.90/5,846.91 = 1,706.50/x
  3. Step 3: Cross multiply
    3,898.90x = 5,846.91 × 1,706.50
  4. Step 4: Simplify right side
    3,898.90x = 9,977,751.92
  5. Step 5: Solve for x
    x = 9,977,751.92/3,898.90
  6. Step 6: Final answer
    x = 2,559.12

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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.