Home / 5,164.76-7,129.55-3,488.44

Finding the Fourth Proportional to 5,164.76, 7,129.55 and 3,488.44

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Solution

The fourth proportional to 5,164.76, 7,129.55 and 3,488.44 is: 4,815.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.76 : 7,129.55 = 3,488.44 : x
  2. Step 2: Convert to fraction form
    5,164.76/7,129.55 = 3,488.44/x
  3. Step 3: Cross multiply
    5,164.76x = 7,129.55 × 3,488.44
  4. Step 4: Simplify right side
    5,164.76x = 24,871,007.40
  5. Step 5: Solve for x
    x = 24,871,007.40/5,164.76
  6. Step 6: Final answer
    x = 4,815.52

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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.