Home / 3,145.62-4,687.26-2,801.10

Finding the Fourth Proportional to 3,145.62, 4,687.26 and 2,801.10

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Solution

The fourth proportional to 3,145.62, 4,687.26 and 2,801.10 is: 4,173.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145.62 : 4,687.26 = 2,801.10 : x
  2. Step 2: Convert to fraction form
    3,145.62/4,687.26 = 2,801.10/x
  3. Step 3: Cross multiply
    3,145.62x = 4,687.26 × 2,801.10
  4. Step 4: Simplify right side
    3,145.62x = 13,129,483.99
  5. Step 5: Solve for x
    x = 13,129,483.99/3,145.62
  6. Step 6: Final answer
    x = 4,173.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.