Home / 5,262.80-7,899.72-3,188

Finding the Fourth Proportional to 5,262.80, 7,899.72 and 3,188

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Solution

The fourth proportional to 5,262.80, 7,899.72 and 3,188 is: 4,785.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,262.80 : 7,899.72 = 3,188 : x
  2. Step 2: Convert to fraction form
    5,262.80/7,899.72 = 3,188/x
  3. Step 3: Cross multiply
    5,262.80x = 7,899.72 × 3,188
  4. Step 4: Simplify right side
    5,262.80x = 25,184,307.36
  5. Step 5: Solve for x
    x = 25,184,307.36/5,262.80
  6. Step 6: Final answer
    x = 4,785.34

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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.