Home / 6,538.48-9,807.60-2,642.80

Finding the Fourth Proportional to 6,538.48, 9,807.60 and 2,642.80

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Solution

The fourth proportional to 6,538.48, 9,807.60 and 2,642.80 is: 3,964.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,538.48 : 9,807.60 = 2,642.80 : x
  2. Step 2: Convert to fraction form
    6,538.48/9,807.60 = 2,642.80/x
  3. Step 3: Cross multiply
    6,538.48x = 9,807.60 × 2,642.80
  4. Step 4: Simplify right side
    6,538.48x = 25,919,525.28
  5. Step 5: Solve for x
    x = 25,919,525.28/6,538.48
  6. Step 6: Final answer
    x = 3,964.15

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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.