Home / 7,419.34-11,130.80-2,489.02

Finding the Fourth Proportional to 7,419.34, 11,130.80 and 2,489.02

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Solution

The fourth proportional to 7,419.34, 11,130.80 and 2,489.02 is: 3,734.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.34 : 11,130.80 = 2,489.02 : x
  2. Step 2: Convert to fraction form
    7,419.34/11,130.80 = 2,489.02/x
  3. Step 3: Cross multiply
    7,419.34x = 11,130.80 × 2,489.02
  4. Step 4: Simplify right side
    7,419.34x = 27,704,783.82
  5. Step 5: Solve for x
    x = 27,704,783.82/7,419.34
  6. Step 6: Final answer
    x = 3,734.13

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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.