Home / 7,108.38-10,663.02-2,178.09

Finding the Fourth Proportional to 7,108.38, 10,663.02 and 2,178.09

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Solution

The fourth proportional to 7,108.38, 10,663.02 and 2,178.09 is: 3,267.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.38 : 10,663.02 = 2,178.09 : x
  2. Step 2: Convert to fraction form
    7,108.38/10,663.02 = 2,178.09/x
  3. Step 3: Cross multiply
    7,108.38x = 10,663.02 × 2,178.09
  4. Step 4: Simplify right side
    7,108.38x = 23,225,017.23
  5. Step 5: Solve for x
    x = 23,225,017.23/7,108.38
  6. Step 6: Final answer
    x = 3,267.27

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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.