Home / 3,145.68-4,719.08-1,065.88

Finding the Fourth Proportional to 3,145.68, 4,719.08 and 1,065.88

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Solution

The fourth proportional to 3,145.68, 4,719.08 and 1,065.88 is: 1,599.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.68 : 4,719.08 = 1,065.88 : x
  2. Step 2: Convert to fraction form
    3,145.68/4,719.08 = 1,065.88/x
  3. Step 3: Cross multiply
    3,145.68x = 4,719.08 × 1,065.88
  4. Step 4: Simplify right side
    3,145.68x = 5,029,972.99
  5. Step 5: Solve for x
    x = 5,029,972.99/3,145.68
  6. Step 6: Final answer
    x = 1,599.01

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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.