Home / 5,146.14-7,720.62-1,683.36

Finding the Fourth Proportional to 5,146.14, 7,720.62 and 1,683.36

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Solution

The fourth proportional to 5,146.14, 7,720.62 and 1,683.36 is: 2,525.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.14 : 7,720.62 = 1,683.36 : x
  2. Step 2: Convert to fraction form
    5,146.14/7,720.62 = 1,683.36/x
  3. Step 3: Cross multiply
    5,146.14x = 7,720.62 × 1,683.36
  4. Step 4: Simplify right side
    5,146.14x = 12,996,582.88
  5. Step 5: Solve for x
    x = 12,996,582.88/5,146.14
  6. Step 6: Final answer
    x = 2,525.50

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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.