Home / 5,098.21-7,646.49-1,399.58

Finding the Fourth Proportional to 5,098.21, 7,646.49 and 1,399.58

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Solution

The fourth proportional to 5,098.21, 7,646.49 and 1,399.58 is: 2,099.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,098.21 : 7,646.49 = 1,399.58 : x
  2. Step 2: Convert to fraction form
    5,098.21/7,646.49 = 1,399.58/x
  3. Step 3: Cross multiply
    5,098.21x = 7,646.49 × 1,399.58
  4. Step 4: Simplify right side
    5,098.21x = 10,701,874.47
  5. Step 5: Solve for x
    x = 10,701,874.47/5,098.21
  6. Step 6: Final answer
    x = 2,099.14

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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.