Home / 7,178.03-9,905.78-4,345.37

Finding the Fourth Proportional to 7,178.03, 9,905.78 and 4,345.37

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Solution

The fourth proportional to 7,178.03, 9,905.78 and 4,345.37 is: 5,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,178.03 : 9,905.78 = 4,345.37 : x
  2. Step 2: Convert to fraction form
    7,178.03/9,905.78 = 4,345.37/x
  3. Step 3: Cross multiply
    7,178.03x = 9,905.78 × 4,345.37
  4. Step 4: Simplify right side
    7,178.03x = 43,044,279.24
  5. Step 5: Solve for x
    x = 43,044,279.24/7,178.03
  6. Step 6: Final answer
    x = 5,996.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.