Home / 3,555.96-5,333.76-1,247.28

Finding the Fourth Proportional to 3,555.96, 5,333.76 and 1,247.28

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Solution

The fourth proportional to 3,555.96, 5,333.76 and 1,247.28 is: 1,870.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.96 : 5,333.76 = 1,247.28 : x
  2. Step 2: Convert to fraction form
    3,555.96/5,333.76 = 1,247.28/x
  3. Step 3: Cross multiply
    3,555.96x = 5,333.76 × 1,247.28
  4. Step 4: Simplify right side
    3,555.96x = 6,652,692.17
  5. Step 5: Solve for x
    x = 6,652,692.17/3,555.96
  6. Step 6: Final answer
    x = 1,870.86

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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.