Home / 5,108.84-7,048.32-3,219.92

Finding the Fourth Proportional to 5,108.84, 7,048.32 and 3,219.92

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Solution

The fourth proportional to 5,108.84, 7,048.32 and 3,219.92 is: 4,442.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,108.84 : 7,048.32 = 3,219.92 : x
  2. Step 2: Convert to fraction form
    5,108.84/7,048.32 = 3,219.92/x
  3. Step 3: Cross multiply
    5,108.84x = 7,048.32 × 3,219.92
  4. Step 4: Simplify right side
    5,108.84x = 22,695,026.53
  5. Step 5: Solve for x
    x = 22,695,026.53/5,108.84
  6. Step 6: Final answer
    x = 4,442.31

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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.