Home / 4,911.70-7,358.55-2,308.90

Finding the Fourth Proportional to 4,911.70, 7,358.55 and 2,308.90

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Solution

The fourth proportional to 4,911.70, 7,358.55 and 2,308.90 is: 3,459.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,911.70 : 7,358.55 = 2,308.90 : x
  2. Step 2: Convert to fraction form
    4,911.70/7,358.55 = 2,308.90/x
  3. Step 3: Cross multiply
    4,911.70x = 7,358.55 × 2,308.90
  4. Step 4: Simplify right side
    4,911.70x = 16,990,156.10
  5. Step 5: Solve for x
    x = 16,990,156.10/4,911.70
  6. Step 6: Final answer
    x = 3,459.12

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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.