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Finding the Fourth Proportional to 1,784.09, 2,462.07 and 998.13

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Solution

The fourth proportional to 1,784.09, 2,462.07 and 998.13 is: 1,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.09 : 2,462.07 = 998.13 : x
  2. Step 2: Convert to fraction form
    1,784.09/2,462.07 = 998.13/x
  3. Step 3: Cross multiply
    1,784.09x = 2,462.07 × 998.13
  4. Step 4: Simplify right side
    1,784.09x = 2,457,465.93
  5. Step 5: Solve for x
    x = 2,457,465.93/1,784.09
  6. Step 6: Final answer
    x = 1,377.44

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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.