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Finding the Fourth Proportional to 1,808.03, 2,495.03 and 1,011.31

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Solution

The fourth proportional to 1,808.03, 2,495.03 and 1,011.31 is: 1,395.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808.03 : 2,495.03 = 1,011.31 : x
  2. Step 2: Convert to fraction form
    1,808.03/2,495.03 = 1,011.31/x
  3. Step 3: Cross multiply
    1,808.03x = 2,495.03 × 1,011.31
  4. Step 4: Simplify right side
    1,808.03x = 2,523,237.50
  5. Step 5: Solve for x
    x = 2,523,237.50/1,808.03
  6. Step 6: Final answer
    x = 1,395.57

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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.