Home / 5,303.76-7,319.86-3,207.90

Finding the Fourth Proportional to 5,303.76, 7,319.86 and 3,207.90

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Solution

The fourth proportional to 5,303.76, 7,319.86 and 3,207.90 is: 4,427.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.76 : 7,319.86 = 3,207.90 : x
  2. Step 2: Convert to fraction form
    5,303.76/7,319.86 = 3,207.90/x
  3. Step 3: Cross multiply
    5,303.76x = 7,319.86 × 3,207.90
  4. Step 4: Simplify right side
    5,303.76x = 23,481,378.89
  5. Step 5: Solve for x
    x = 23,481,378.89/5,303.76
  6. Step 6: Final answer
    x = 4,427.31

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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.