Home / 5,284.20-7,925.72-2,123

Finding the Fourth Proportional to 5,284.20, 7,925.72 and 2,123

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Solution

The fourth proportional to 5,284.20, 7,925.72 and 2,123 is: 3,184.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,284.20 : 7,925.72 = 2,123 : x
  2. Step 2: Convert to fraction form
    5,284.20/7,925.72 = 2,123/x
  3. Step 3: Cross multiply
    5,284.20x = 7,925.72 × 2,123
  4. Step 4: Simplify right side
    5,284.20x = 16,826,303.56
  5. Step 5: Solve for x
    x = 16,826,303.56/5,284.20
  6. Step 6: Final answer
    x = 3,184.27

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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.