Home / 5,674.50-7,830.81-3,318.62

Finding the Fourth Proportional to 5,674.50, 7,830.81 and 3,318.62

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Solution

The fourth proportional to 5,674.50, 7,830.81 and 3,318.62 is: 4,579.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.50 : 7,830.81 = 3,318.62 : x
  2. Step 2: Convert to fraction form
    5,674.50/7,830.81 = 3,318.62/x
  3. Step 3: Cross multiply
    5,674.50x = 7,830.81 × 3,318.62
  4. Step 4: Simplify right side
    5,674.50x = 25,987,482.68
  5. Step 5: Solve for x
    x = 25,987,482.68/5,674.50
  6. Step 6: Final answer
    x = 4,579.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.