Home / 7,108.32-10,664.10-2,178.12

Finding the Fourth Proportional to 7,108.32, 10,664.10 and 2,178.12

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Solution

The fourth proportional to 7,108.32, 10,664.10 and 2,178.12 is: 3,267.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.32 : 10,664.10 = 2,178.12 : x
  2. Step 2: Convert to fraction form
    7,108.32/10,664.10 = 2,178.12/x
  3. Step 3: Cross multiply
    7,108.32x = 10,664.10 × 2,178.12
  4. Step 4: Simplify right side
    7,108.32x = 23,227,689.49
  5. Step 5: Solve for x
    x = 23,227,689.49/7,108.32
  6. Step 6: Final answer
    x = 3,267.68

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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.