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Finding the Fourth Proportional to 2,457.95, 3,687.37 and 998.12

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Solution

The fourth proportional to 2,457.95, 3,687.37 and 998.12 is: 1,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.95 : 3,687.37 = 998.12 : x
  2. Step 2: Convert to fraction form
    2,457.95/3,687.37 = 998.12/x
  3. Step 3: Cross multiply
    2,457.95x = 3,687.37 × 998.12
  4. Step 4: Simplify right side
    2,457.95x = 3,680,444.47
  5. Step 5: Solve for x
    x = 3,680,444.47/2,457.95
  6. Step 6: Final answer
    x = 1,497.37

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.