Home / 5,450.71-8,176.17-1,555.21

Finding the Fourth Proportional to 5,450.71, 8,176.17 and 1,555.21

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Solution

The fourth proportional to 5,450.71, 8,176.17 and 1,555.21 is: 2,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.71 : 8,176.17 = 1,555.21 : x
  2. Step 2: Convert to fraction form
    5,450.71/8,176.17 = 1,555.21/x
  3. Step 3: Cross multiply
    5,450.71x = 8,176.17 × 1,555.21
  4. Step 4: Simplify right side
    5,450.71x = 12,715,661.35
  5. Step 5: Solve for x
    x = 12,715,661.35/5,450.71
  6. Step 6: Final answer
    x = 2,332.84

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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.