Home / 5,103.77-7,042.70-3,114.82

Finding the Fourth Proportional to 5,103.77, 7,042.70 and 3,114.82

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Solution

The fourth proportional to 5,103.77, 7,042.70 and 3,114.82 is: 4,298.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,103.77 : 7,042.70 = 3,114.82 : x
  2. Step 2: Convert to fraction form
    5,103.77/7,042.70 = 3,114.82/x
  3. Step 3: Cross multiply
    5,103.77x = 7,042.70 × 3,114.82
  4. Step 4: Simplify right side
    5,103.77x = 21,936,692.03
  5. Step 5: Solve for x
    x = 21,936,692.03/5,103.77
  6. Step 6: Final answer
    x = 4,298.13

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1.5x scale

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.