Home / 4,782.12-7,172.84-2,440.68

Finding the Fourth Proportional to 4,782.12, 7,172.84 and 2,440.68

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Solution

The fourth proportional to 4,782.12, 7,172.84 and 2,440.68 is: 3,660.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,782.12 : 7,172.84 = 2,440.68 : x
  2. Step 2: Convert to fraction form
    4,782.12/7,172.84 = 2,440.68/x
  3. Step 3: Cross multiply
    4,782.12x = 7,172.84 × 2,440.68
  4. Step 4: Simplify right side
    4,782.12x = 17,506,607.13
  5. Step 5: Solve for x
    x = 17,506,607.13/4,782.12
  6. Step 6: Final answer
    x = 3,660.85

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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.