Home / 6,539.72-9,810.80-2,157.36

Finding the Fourth Proportional to 6,539.72, 9,810.80 and 2,157.36

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Solution

The fourth proportional to 6,539.72, 9,810.80 and 2,157.36 is: 3,236.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.72 : 9,810.80 = 2,157.36 : x
  2. Step 2: Convert to fraction form
    6,539.72/9,810.80 = 2,157.36/x
  3. Step 3: Cross multiply
    6,539.72x = 9,810.80 × 2,157.36
  4. Step 4: Simplify right side
    6,539.72x = 21,165,427.49
  5. Step 5: Solve for x
    x = 21,165,427.49/6,539.72
  6. Step 6: Final answer
    x = 3,236.44

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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.