Home / 5,021.20-6,929.63-2,783.28

Finding the Fourth Proportional to 5,021.20, 6,929.63 and 2,783.28

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Solution

The fourth proportional to 5,021.20, 6,929.63 and 2,783.28 is: 3,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,021.20 : 6,929.63 = 2,783.28 : x
  2. Step 2: Convert to fraction form
    5,021.20/6,929.63 = 2,783.28/x
  3. Step 3: Cross multiply
    5,021.20x = 6,929.63 × 2,783.28
  4. Step 4: Simplify right side
    5,021.20x = 19,287,100.59
  5. Step 5: Solve for x
    x = 19,287,100.59/5,021.20
  6. Step 6: Final answer
    x = 3,841.13

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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.