Home / 3,415.34-5,116.10-1,563.91

Finding the Fourth Proportional to 3,415.34, 5,116.10 and 1,563.91

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Solution

The fourth proportional to 3,415.34, 5,116.10 and 1,563.91 is: 2,342.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,415.34 : 5,116.10 = 1,563.91 : x
  2. Step 2: Convert to fraction form
    3,415.34/5,116.10 = 1,563.91/x
  3. Step 3: Cross multiply
    3,415.34x = 5,116.10 × 1,563.91
  4. Step 4: Simplify right side
    3,415.34x = 8,001,119.95
  5. Step 5: Solve for x
    x = 8,001,119.95/3,415.34
  6. Step 6: Final answer
    x = 2,342.70

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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.