Home / 3,147.45-4,344.10-2,400.07

Finding the Fourth Proportional to 3,147.45, 4,344.10 and 2,400.07

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Solution

The fourth proportional to 3,147.45, 4,344.10 and 2,400.07 is: 3,312.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,147.45 : 4,344.10 = 2,400.07 : x
  2. Step 2: Convert to fraction form
    3,147.45/4,344.10 = 2,400.07/x
  3. Step 3: Cross multiply
    3,147.45x = 4,344.10 × 2,400.07
  4. Step 4: Simplify right side
    3,147.45x = 10,426,122.37
  5. Step 5: Solve for x
    x = 10,426,122.37/3,147.45
  6. Step 6: Final answer
    x = 3,312.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.