Home / 5,405.90-8,097.57-2,800.94

Finding the Fourth Proportional to 5,405.90, 8,097.57 and 2,800.94

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Solution

The fourth proportional to 5,405.90, 8,097.57 and 2,800.94 is: 4,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.90 : 8,097.57 = 2,800.94 : x
  2. Step 2: Convert to fraction form
    5,405.90/8,097.57 = 2,800.94/x
  3. Step 3: Cross multiply
    5,405.90x = 8,097.57 × 2,800.94
  4. Step 4: Simplify right side
    5,405.90x = 22,680,807.72
  5. Step 5: Solve for x
    x = 22,680,807.72/5,405.90
  6. Step 6: Final answer
    x = 4,195.57

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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.