Home / 7,285.50-10,929.87-2,902.86

Finding the Fourth Proportional to 7,285.50, 10,929.87 and 2,902.86

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Solution

The fourth proportional to 7,285.50, 10,929.87 and 2,902.86 is: 4,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,285.50 : 10,929.87 = 2,902.86 : x
  2. Step 2: Convert to fraction form
    7,285.50/10,929.87 = 2,902.86/x
  3. Step 3: Cross multiply
    7,285.50x = 10,929.87 × 2,902.86
  4. Step 4: Simplify right side
    7,285.50x = 31,727,882.43
  5. Step 5: Solve for x
    x = 31,727,882.43/7,285.50
  6. Step 6: Final answer
    x = 4,354.94

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1.5x scale

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.