Home / 7,390.53-11,090.21-2,947.41

Finding the Fourth Proportional to 7,390.53, 11,090.21 and 2,947.41

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Solution

The fourth proportional to 7,390.53, 11,090.21 and 2,947.41 is: 4,422.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,390.53 : 11,090.21 = 2,947.41 : x
  2. Step 2: Convert to fraction form
    7,390.53/11,090.21 = 2,947.41/x
  3. Step 3: Cross multiply
    7,390.53x = 11,090.21 × 2,947.41
  4. Step 4: Simplify right side
    7,390.53x = 32,687,381.12
  5. Step 5: Solve for x
    x = 32,687,381.12/7,390.53
  6. Step 6: Final answer
    x = 4,422.87

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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.