Home / 2,457.54-3,391.40-1,338.48

Finding the Fourth Proportional to 2,457.54, 3,391.40 and 1,338.48

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Solution

The fourth proportional to 2,457.54, 3,391.40 and 1,338.48 is: 1,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.54 : 3,391.40 = 1,338.48 : x
  2. Step 2: Convert to fraction form
    2,457.54/3,391.40 = 1,338.48/x
  3. Step 3: Cross multiply
    2,457.54x = 3,391.40 × 1,338.48
  4. Step 4: Simplify right side
    2,457.54x = 4,539,324.42
  5. Step 5: Solve for x
    x = 4,539,324.42/2,457.54
  6. Step 6: Final answer
    x = 1,847.10

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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.