Home / 7,457.20-11,178.24-2,525.20

Finding the Fourth Proportional to 7,457.20, 11,178.24 and 2,525.20

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Solution

The fourth proportional to 7,457.20, 11,178.24 and 2,525.20 is: 3,785.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.20 : 11,178.24 = 2,525.20 : x
  2. Step 2: Convert to fraction form
    7,457.20/11,178.24 = 2,525.20/x
  3. Step 3: Cross multiply
    7,457.20x = 11,178.24 × 2,525.20
  4. Step 4: Simplify right side
    7,457.20x = 28,227,291.65
  5. Step 5: Solve for x
    x = 28,227,291.65/7,457.20
  6. Step 6: Final answer
    x = 3,785.24

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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.