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Finding the Fourth Proportional to 1,537.67, 2,303.67 and 1,126.19

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Solution

The fourth proportional to 1,537.67, 2,303.67 and 1,126.19 is: 1,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537.67 : 2,303.67 = 1,126.19 : x
  2. Step 2: Convert to fraction form
    1,537.67/2,303.67 = 1,126.19/x
  3. Step 3: Cross multiply
    1,537.67x = 2,303.67 × 1,126.19
  4. Step 4: Simplify right side
    1,537.67x = 2,594,370.12
  5. Step 5: Solve for x
    x = 2,594,370.12/1,537.67
  6. Step 6: Final answer
    x = 1,687.21

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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.