Home / 7,639.12-11,457.24-2,708.56

Finding the Fourth Proportional to 7,639.12, 11,457.24 and 2,708.56

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Solution

The fourth proportional to 7,639.12, 11,457.24 and 2,708.56 is: 4,062.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.12 : 11,457.24 = 2,708.56 : x
  2. Step 2: Convert to fraction form
    7,639.12/11,457.24 = 2,708.56/x
  3. Step 3: Cross multiply
    7,639.12x = 11,457.24 × 2,708.56
  4. Step 4: Simplify right side
    7,639.12x = 31,032,621.97
  5. Step 5: Solve for x
    x = 31,032,621.97/7,639.12
  6. Step 6: Final answer
    x = 4,062.33

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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.