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Finding the Fourth Proportional to 1,665.66, 2,495.71 and 1,015.03

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Solution

The fourth proportional to 1,665.66, 2,495.71 and 1,015.03 is: 1,520.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,665.66 : 2,495.71 = 1,015.03 : x
  2. Step 2: Convert to fraction form
    1,665.66/2,495.71 = 1,015.03/x
  3. Step 3: Cross multiply
    1,665.66x = 2,495.71 × 1,015.03
  4. Step 4: Simplify right side
    1,665.66x = 2,533,224.91
  5. Step 5: Solve for x
    x = 2,533,224.91/1,665.66
  6. Step 6: Final answer
    x = 1,520.85

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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.