Home / 7,908.16-11,860.58-2,977.68

Finding the Fourth Proportional to 7,908.16, 11,860.58 and 2,977.68

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Solution

The fourth proportional to 7,908.16, 11,860.58 and 2,977.68 is: 4,465.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.16 : 11,860.58 = 2,977.68 : x
  2. Step 2: Convert to fraction form
    7,908.16/11,860.58 = 2,977.68/x
  3. Step 3: Cross multiply
    7,908.16x = 11,860.58 × 2,977.68
  4. Step 4: Simplify right side
    7,908.16x = 35,317,011.85
  5. Step 5: Solve for x
    x = 35,317,011.85/7,908.16
  6. Step 6: Final answer
    x = 4,465.89

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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.