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Finding the Fourth Proportional to 5,021.87, 6,929.46 and 2,783.87

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Solution

The fourth proportional to 5,021.87, 6,929.46 and 2,783.87 is: 3,841.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.87 : 6,929.46 = 2,783.87 : x
  2. Step 2: Convert to fraction form
    5,021.87/6,929.46 = 2,783.87/x
  3. Step 3: Cross multiply
    5,021.87x = 6,929.46 × 2,783.87
  4. Step 4: Simplify right side
    5,021.87x = 19,290,715.81
  5. Step 5: Solve for x
    x = 19,290,715.81/5,021.87
  6. Step 6: Final answer
    x = 3,841.34

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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.