Home / 5,216.10-7,825.32-1,929.30

Finding the Fourth Proportional to 5,216.10, 7,825.32 and 1,929.30

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Solution

The fourth proportional to 5,216.10, 7,825.32 and 1,929.30 is: 2,894.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216.10 : 7,825.32 = 1,929.30 : x
  2. Step 2: Convert to fraction form
    5,216.10/7,825.32 = 1,929.30/x
  3. Step 3: Cross multiply
    5,216.10x = 7,825.32 × 1,929.30
  4. Step 4: Simplify right side
    5,216.10x = 15,097,389.88
  5. Step 5: Solve for x
    x = 15,097,389.88/5,216.10
  6. Step 6: Final answer
    x = 2,894.38

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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.