Home / 5,104.02-7,043.36-3,117.90

Finding the Fourth Proportional to 5,104.02, 7,043.36 and 3,117.90

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Solution

The fourth proportional to 5,104.02, 7,043.36 and 3,117.90 is: 4,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,104.02 : 7,043.36 = 3,117.90 : x
  2. Step 2: Convert to fraction form
    5,104.02/7,043.36 = 3,117.90/x
  3. Step 3: Cross multiply
    5,104.02x = 7,043.36 × 3,117.90
  4. Step 4: Simplify right side
    5,104.02x = 21,960,464.72
  5. Step 5: Solve for x
    x = 21,960,464.72/5,104.02
  6. Step 6: Final answer
    x = 4,302.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.