Home / 7,651.79-11,478.73-2,720.24

Finding the Fourth Proportional to 7,651.79, 11,478.73 and 2,720.24

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Solution

The fourth proportional to 7,651.79, 11,478.73 and 2,720.24 is: 4,080.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.79 : 11,478.73 = 2,720.24 : x
  2. Step 2: Convert to fraction form
    7,651.79/11,478.73 = 2,720.24/x
  3. Step 3: Cross multiply
    7,651.79x = 11,478.73 × 2,720.24
  4. Step 4: Simplify right side
    7,651.79x = 31,224,900.50
  5. Step 5: Solve for x
    x = 31,224,900.50/7,651.79
  6. Step 6: Final answer
    x = 4,080.73

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1.5x scale

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.