Home / 4,767.15-7,145.58-1,991.73

Finding the Fourth Proportional to 4,767.15, 7,145.58 and 1,991.73

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Solution

The fourth proportional to 4,767.15, 7,145.58 and 1,991.73 is: 2,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,767.15 : 7,145.58 = 1,991.73 : x
  2. Step 2: Convert to fraction form
    4,767.15/7,145.58 = 1,991.73/x
  3. Step 3: Cross multiply
    4,767.15x = 7,145.58 × 1,991.73
  4. Step 4: Simplify right side
    4,767.15x = 14,232,066.05
  5. Step 5: Solve for x
    x = 14,232,066.05/4,767.15
  6. Step 6: Final answer
    x = 2,985.45

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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.