Home / 6,538.21-9,808.53-2,155.98

Finding the Fourth Proportional to 6,538.21, 9,808.53 and 2,155.98

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Solution

The fourth proportional to 6,538.21, 9,808.53 and 2,155.98 is: 3,234.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,538.21 : 9,808.53 = 2,155.98 : x
  2. Step 2: Convert to fraction form
    6,538.21/9,808.53 = 2,155.98/x
  3. Step 3: Cross multiply
    6,538.21x = 9,808.53 × 2,155.98
  4. Step 4: Simplify right side
    6,538.21x = 21,146,994.51
  5. Step 5: Solve for x
    x = 21,146,994.51/6,538.21
  6. Step 6: Final answer
    x = 3,234.37

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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.