Home / 5,133.10-7,699.65-3,286.30

Finding the Fourth Proportional to 5,133.10, 7,699.65 and 3,286.30

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Solution

The fourth proportional to 5,133.10, 7,699.65 and 3,286.30 is: 4,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.10 : 7,699.65 = 3,286.30 : x
  2. Step 2: Convert to fraction form
    5,133.10/7,699.65 = 3,286.30/x
  3. Step 3: Cross multiply
    5,133.10x = 7,699.65 × 3,286.30
  4. Step 4: Simplify right side
    5,133.10x = 25,303,359.80
  5. Step 5: Solve for x
    x = 25,303,359.80/5,133.10
  6. Step 6: Final answer
    x = 4,929.45

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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.