Home / 3,503.24-5,255.34-1,555.40

Finding the Fourth Proportional to 3,503.24, 5,255.34 and 1,555.40

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Solution

The fourth proportional to 3,503.24, 5,255.34 and 1,555.40 is: 2,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.24 : 5,255.34 = 1,555.40 : x
  2. Step 2: Convert to fraction form
    3,503.24/5,255.34 = 1,555.40/x
  3. Step 3: Cross multiply
    3,503.24x = 5,255.34 × 1,555.40
  4. Step 4: Simplify right side
    3,503.24x = 8,174,155.84
  5. Step 5: Solve for x
    x = 8,174,155.84/3,503.24
  6. Step 6: Final answer
    x = 2,333.31

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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.