Home / 2,457.96-3,391.98-1,338.90

Finding the Fourth Proportional to 2,457.96, 3,391.98 and 1,338.90

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Solution

The fourth proportional to 2,457.96, 3,391.98 and 1,338.90 is: 1,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.96 : 3,391.98 = 1,338.90 : x
  2. Step 2: Convert to fraction form
    2,457.96/3,391.98 = 1,338.90/x
  3. Step 3: Cross multiply
    2,457.96x = 3,391.98 × 1,338.90
  4. Step 4: Simplify right side
    2,457.96x = 4,541,522.02
  5. Step 5: Solve for x
    x = 4,541,522.02/2,457.96
  6. Step 6: Final answer
    x = 1,847.68

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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.