Home / 3,588.45-5,380.38-1,247.28

Finding the Fourth Proportional to 3,588.45, 5,380.38 and 1,247.28

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Solution

The fourth proportional to 3,588.45, 5,380.38 and 1,247.28 is: 1,870.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,588.45 : 5,380.38 = 1,247.28 : x
  2. Step 2: Convert to fraction form
    3,588.45/5,380.38 = 1,247.28/x
  3. Step 3: Cross multiply
    3,588.45x = 5,380.38 × 1,247.28
  4. Step 4: Simplify right side
    3,588.45x = 6,710,840.37
  5. Step 5: Solve for x
    x = 6,710,840.37/3,588.45
  6. Step 6: Final answer
    x = 1,870.12

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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.