Home / 5,077.80-7,007.12-3,190.36

Finding the Fourth Proportional to 5,077.80, 7,007.12 and 3,190.36

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Solution

The fourth proportional to 5,077.80, 7,007.12 and 3,190.36 is: 4,402.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,077.80 : 7,007.12 = 3,190.36 : x
  2. Step 2: Convert to fraction form
    5,077.80/7,007.12 = 3,190.36/x
  3. Step 3: Cross multiply
    5,077.80x = 7,007.12 × 3,190.36
  4. Step 4: Simplify right side
    5,077.80x = 22,355,235.36
  5. Step 5: Solve for x
    x = 22,355,235.36/5,077.80
  6. Step 6: Final answer
    x = 4,402.54

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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.