Home / 7,108.77-10,662.44-2,178.45

Finding the Fourth Proportional to 7,108.77, 10,662.44 and 2,178.45

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Solution

The fourth proportional to 7,108.77, 10,662.44 and 2,178.45 is: 3,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.77 : 10,662.44 = 2,178.45 : x
  2. Step 2: Convert to fraction form
    7,108.77/10,662.44 = 2,178.45/x
  3. Step 3: Cross multiply
    7,108.77x = 10,662.44 × 2,178.45
  4. Step 4: Simplify right side
    7,108.77x = 23,227,581.53
  5. Step 5: Solve for x
    x = 23,227,581.53/7,108.77
  6. Step 6: Final answer
    x = 3,267.45

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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.