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Finding the Fourth Proportional to 2,457.14, 3,689.42 and 999.14

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Solution

The fourth proportional to 2,457.14, 3,689.42 and 999.14 is: 1,500.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,457.14 : 3,689.42 = 999.14 : x
  2. Step 2: Convert to fraction form
    2,457.14/3,689.42 = 999.14/x
  3. Step 3: Cross multiply
    2,457.14x = 3,689.42 × 999.14
  4. Step 4: Simplify right side
    2,457.14x = 3,686,223.66
  5. Step 5: Solve for x
    x = 3,686,223.66/2,457.14
  6. Step 6: Final answer
    x = 1,500.21

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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.