Home / 5,021.75-6,930.99-2,898.65

Finding the Fourth Proportional to 5,021.75, 6,930.99 and 2,898.65

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Solution

The fourth proportional to 5,021.75, 6,930.99 and 2,898.65 is: 4,000.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.75 : 6,930.99 = 2,898.65 : x
  2. Step 2: Convert to fraction form
    5,021.75/6,930.99 = 2,898.65/x
  3. Step 3: Cross multiply
    5,021.75x = 6,930.99 × 2,898.65
  4. Step 4: Simplify right side
    5,021.75x = 20,090,531.49
  5. Step 5: Solve for x
    x = 20,090,531.49/5,021.75
  6. Step 6: Final answer
    x = 4,000.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.