Home / 5,021.72-6,929.86-2,783.57

Finding the Fourth Proportional to 5,021.72, 6,929.86 and 2,783.57

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Solution

The fourth proportional to 5,021.72, 6,929.86 and 2,783.57 is: 3,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.72 : 6,929.86 = 2,783.57 : x
  2. Step 2: Convert to fraction form
    5,021.72/6,929.86 = 2,783.57/x
  3. Step 3: Cross multiply
    5,021.72x = 6,929.86 × 2,783.57
  4. Step 4: Simplify right side
    5,021.72x = 19,289,736.48
  5. Step 5: Solve for x
    x = 19,289,736.48/5,021.72
  6. Step 6: Final answer
    x = 3,841.26

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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.