Home / 7,785.04-11,682.90-3,403.72

Finding the Fourth Proportional to 7,785.04, 11,682.90 and 3,403.72

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Solution

The fourth proportional to 7,785.04, 11,682.90 and 3,403.72 is: 5,107.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,785.04 : 11,682.90 = 3,403.72 : x
  2. Step 2: Convert to fraction form
    7,785.04/11,682.90 = 3,403.72/x
  3. Step 3: Cross multiply
    7,785.04x = 11,682.90 × 3,403.72
  4. Step 4: Simplify right side
    7,785.04x = 39,765,320.39
  5. Step 5: Solve for x
    x = 39,765,320.39/7,785.04
  6. Step 6: Final answer
    x = 5,107.91

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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.