Home / 6,986.48-10,471.80-3,285.20

Finding the Fourth Proportional to 6,986.48, 10,471.80 and 3,285.20

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Solution

The fourth proportional to 6,986.48, 10,471.80 and 3,285.20 is: 4,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,986.48 : 10,471.80 = 3,285.20 : x
  2. Step 2: Convert to fraction form
    6,986.48/10,471.80 = 3,285.20/x
  3. Step 3: Cross multiply
    6,986.48x = 10,471.80 × 3,285.20
  4. Step 4: Simplify right side
    6,986.48x = 34,401,957.36
  5. Step 5: Solve for x
    x = 34,401,957.36/6,986.48
  6. Step 6: Final answer
    x = 4,924.08

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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.