Home / 7,108.32-10,661.04-3,991.44

Finding the Fourth Proportional to 7,108.32, 10,661.04 and 3,991.44

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Solution

The fourth proportional to 7,108.32, 10,661.04 and 3,991.44 is: 5,986.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.32 : 10,661.04 = 3,991.44 : x
  2. Step 2: Convert to fraction form
    7,108.32/10,661.04 = 3,991.44/x
  3. Step 3: Cross multiply
    7,108.32x = 10,661.04 × 3,991.44
  4. Step 4: Simplify right side
    7,108.32x = 42,552,901.50
  5. Step 5: Solve for x
    x = 42,552,901.50/7,108.32
  6. Step 6: Final answer
    x = 5,986.35

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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.