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Finding the Fourth Proportional to 2,457.54, 3,391.37 and 1,353.54

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Solution

The fourth proportional to 2,457.54, 3,391.37 and 1,353.54 is: 1,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.54 : 3,391.37 = 1,353.54 : x
  2. Step 2: Convert to fraction form
    2,457.54/3,391.37 = 1,353.54/x
  3. Step 3: Cross multiply
    2,457.54x = 3,391.37 × 1,353.54
  4. Step 4: Simplify right side
    2,457.54x = 4,590,354.95
  5. Step 5: Solve for x
    x = 4,590,354.95/2,457.54
  6. Step 6: Final answer
    x = 1,867.87

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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.