Home / 2,457.20-3,391.67-1,618.55

Finding the Fourth Proportional to 2,457.20, 3,391.67 and 1,618.55

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Solution

The fourth proportional to 2,457.20, 3,391.67 and 1,618.55 is: 2,234.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.20 : 3,391.67 = 1,618.55 : x
  2. Step 2: Convert to fraction form
    2,457.20/3,391.67 = 1,618.55/x
  3. Step 3: Cross multiply
    2,457.20x = 3,391.67 × 1,618.55
  4. Step 4: Simplify right side
    2,457.20x = 5,489,587.48
  5. Step 5: Solve for x
    x = 5,489,587.48/2,457.20
  6. Step 6: Final answer
    x = 2,234.08

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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.