Home / 4,620.45-6,931.71-2,154

Finding the Fourth Proportional to 4,620.45, 6,931.71 and 2,154

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Solution

The fourth proportional to 4,620.45, 6,931.71 and 2,154 is: 3,231.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,620.45 : 6,931.71 = 2,154 : x
  2. Step 2: Convert to fraction form
    4,620.45/6,931.71 = 2,154/x
  3. Step 3: Cross multiply
    4,620.45x = 6,931.71 × 2,154
  4. Step 4: Simplify right side
    4,620.45x = 14,930,903.34
  5. Step 5: Solve for x
    x = 14,930,903.34/4,620.45
  6. Step 6: Final answer
    x = 3,231.48

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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.