Home / 6,985.36-10,479.30-3,089.80

Finding the Fourth Proportional to 6,985.36, 10,479.30 and 3,089.80

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Solution

The fourth proportional to 6,985.36, 10,479.30 and 3,089.80 is: 4,635.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,985.36 : 10,479.30 = 3,089.80 : x
  2. Step 2: Convert to fraction form
    6,985.36/10,479.30 = 3,089.80/x
  3. Step 3: Cross multiply
    6,985.36x = 10,479.30 × 3,089.80
  4. Step 4: Simplify right side
    6,985.36x = 32,378,941.14
  5. Step 5: Solve for x
    x = 32,378,941.14/6,985.36
  6. Step 6: Final answer
    x = 4,635.26

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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.