Home / 2,457.51-3,391.43-1,338.49

Finding the Fourth Proportional to 2,457.51, 3,391.43 and 1,338.49

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Solution

The fourth proportional to 2,457.51, 3,391.43 and 1,338.49 is: 1,847.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.51 : 3,391.43 = 1,338.49 : x
  2. Step 2: Convert to fraction form
    2,457.51/3,391.43 = 1,338.49/x
  3. Step 3: Cross multiply
    2,457.51x = 3,391.43 × 1,338.49
  4. Step 4: Simplify right side
    2,457.51x = 4,539,396.93
  5. Step 5: Solve for x
    x = 4,539,396.93/2,457.51
  6. Step 6: Final answer
    x = 1,847.15

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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.