Home / 7,109.49-10,666.44-2,951.45

Finding the Fourth Proportional to 7,109.49, 10,666.44 and 2,951.45

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Solution

The fourth proportional to 7,109.49, 10,666.44 and 2,951.45 is: 4,428.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109.49 : 10,666.44 = 2,951.45 : x
  2. Step 2: Convert to fraction form
    7,109.49/10,666.44 = 2,951.45/x
  3. Step 3: Cross multiply
    7,109.49x = 10,666.44 × 2,951.45
  4. Step 4: Simplify right side
    7,109.49x = 31,481,464.34
  5. Step 5: Solve for x
    x = 31,481,464.34/7,109.49
  6. Step 6: Final answer
    x = 4,428.09

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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.