Home / 2,400.43-3,312.48-1,338.31

Finding the Fourth Proportional to 2,400.43, 3,312.48 and 1,338.31

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Solution

The fourth proportional to 2,400.43, 3,312.48 and 1,338.31 is: 1,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.43 : 3,312.48 = 1,338.31 : x
  2. Step 2: Convert to fraction form
    2,400.43/3,312.48 = 1,338.31/x
  3. Step 3: Cross multiply
    2,400.43x = 3,312.48 × 1,338.31
  4. Step 4: Simplify right side
    2,400.43x = 4,433,133.97
  5. Step 5: Solve for x
    x = 4,433,133.97/2,400.43
  6. Step 6: Final answer
    x = 1,846.81

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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.