Home / 7,138.29-10,704.80-2,457.01

Finding the Fourth Proportional to 7,138.29, 10,704.80 and 2,457.01

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Solution

The fourth proportional to 7,138.29, 10,704.80 and 2,457.01 is: 3,684.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.29 : 10,704.80 = 2,457.01 : x
  2. Step 2: Convert to fraction form
    7,138.29/10,704.80 = 2,457.01/x
  3. Step 3: Cross multiply
    7,138.29x = 10,704.80 × 2,457.01
  4. Step 4: Simplify right side
    7,138.29x = 26,301,761.60
  5. Step 5: Solve for x
    x = 26,301,761.60/7,138.29
  6. Step 6: Final answer
    x = 3,684.60

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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.