Home / 3,191,457.80-4,787,186.70-2,183,688.20

Finding the Fourth Proportional to 3,191,457.80, 4,787,186.70 and 2,183,688.20

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Solution

The fourth proportional to 3,191,457.80, 4,787,186.70 and 2,183,688.20 is: 3,275,532.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,457.80 : 4,787,186.70 = 2,183,688.20 : x
  2. Step 2: Convert to fraction form
    3,191,457.80/4,787,186.70 = 2,183,688.20/x
  3. Step 3: Cross multiply
    3,191,457.80x = 4,787,186.70 × 2,183,688.20
  4. Step 4: Simplify right side
    3,191,457.80x = 10,453,723,107,986.94
  5. Step 5: Solve for x
    x = 10,453,723,107,986.94/3,191,457.80
  6. Step 6: Final answer
    x = 3,275,532.30

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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.