Home / 5,475.18-8,205.21-4,742.94

Finding the Fourth Proportional to 5,475.18, 8,205.21 and 4,742.94

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Solution

The fourth proportional to 5,475.18, 8,205.21 and 4,742.94 is: 7,107.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,475.18 : 8,205.21 = 4,742.94 : x
  2. Step 2: Convert to fraction form
    5,475.18/8,205.21 = 4,742.94/x
  3. Step 3: Cross multiply
    5,475.18x = 8,205.21 × 4,742.94
  4. Step 4: Simplify right side
    5,475.18x = 38,916,818.72
  5. Step 5: Solve for x
    x = 38,916,818.72/5,475.18
  6. Step 6: Final answer
    x = 7,107.86

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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.