Home / 3,126.18-4,687.38-1,564.37

Finding the Fourth Proportional to 3,126.18, 4,687.38 and 1,564.37

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Solution

The fourth proportional to 3,126.18, 4,687.38 and 1,564.37 is: 2,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.18 : 4,687.38 = 1,564.37 : x
  2. Step 2: Convert to fraction form
    3,126.18/4,687.38 = 1,564.37/x
  3. Step 3: Cross multiply
    3,126.18x = 4,687.38 × 1,564.37
  4. Step 4: Simplify right side
    3,126.18x = 7,332,773.21
  5. Step 5: Solve for x
    x = 7,332,773.21/3,126.18
  6. Step 6: Final answer
    x = 2,345.60

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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.