Home / 5,443.79-8,161.61-2,808.45

Finding the Fourth Proportional to 5,443.79, 8,161.61 and 2,808.45

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Solution

The fourth proportional to 5,443.79, 8,161.61 and 2,808.45 is: 4,210.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,443.79 : 8,161.61 = 2,808.45 : x
  2. Step 2: Convert to fraction form
    5,443.79/8,161.61 = 2,808.45/x
  3. Step 3: Cross multiply
    5,443.79x = 8,161.61 × 2,808.45
  4. Step 4: Simplify right side
    5,443.79x = 22,921,459.56
  5. Step 5: Solve for x
    x = 22,921,459.56/5,443.79
  6. Step 6: Final answer
    x = 4,210.57

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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.