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Finding the Fourth Proportional to 1,784.07, 2,462.13 and 998.18

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Solution

The fourth proportional to 1,784.07, 2,462.13 and 998.18 is: 1,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,784.07 : 2,462.13 = 998.18 : x
  2. Step 2: Convert to fraction form
    1,784.07/2,462.13 = 998.18/x
  3. Step 3: Cross multiply
    1,784.07x = 2,462.13 × 998.18
  4. Step 4: Simplify right side
    1,784.07x = 2,457,648.92
  5. Step 5: Solve for x
    x = 2,457,648.92/1,784.07
  6. Step 6: Final answer
    x = 1,377.55

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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.