Home / 5,131.04-7,697.76-2,209.64

Finding the Fourth Proportional to 5,131.04, 7,697.76 and 2,209.64

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Solution

The fourth proportional to 5,131.04, 7,697.76 and 2,209.64 is: 3,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,131.04 : 7,697.76 = 2,209.64 : x
  2. Step 2: Convert to fraction form
    5,131.04/7,697.76 = 2,209.64/x
  3. Step 3: Cross multiply
    5,131.04x = 7,697.76 × 2,209.64
  4. Step 4: Simplify right side
    5,131.04x = 17,009,278.41
  5. Step 5: Solve for x
    x = 17,009,278.41/5,131.04
  6. Step 6: Final answer
    x = 3,314.98

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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.