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Finding the Fourth Proportional to 1,818.84, 2,509.39 and 1,110.43

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Solution

The fourth proportional to 1,818.84, 2,509.39 and 1,110.43 is: 1,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818.84 : 2,509.39 = 1,110.43 : x
  2. Step 2: Convert to fraction form
    1,818.84/2,509.39 = 1,110.43/x
  3. Step 3: Cross multiply
    1,818.84x = 2,509.39 × 1,110.43
  4. Step 4: Simplify right side
    1,818.84x = 2,786,486.10
  5. Step 5: Solve for x
    x = 2,786,486.10/1,818.84
  6. Step 6: Final answer
    x = 1,532.01

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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.