Home / 5,219.51-7,200.27-3,960.77

Finding the Fourth Proportional to 5,219.51, 7,200.27 and 3,960.77

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Solution

The fourth proportional to 5,219.51, 7,200.27 and 3,960.77 is: 5,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.51 : 7,200.27 = 3,960.77 : x
  2. Step 2: Convert to fraction form
    5,219.51/7,200.27 = 3,960.77/x
  3. Step 3: Cross multiply
    5,219.51x = 7,200.27 × 3,960.77
  4. Step 4: Simplify right side
    5,219.51x = 28,518,577.41
  5. Step 5: Solve for x
    x = 28,518,577.41/5,219.51
  6. Step 6: Final answer
    x = 5,463.85

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Half scale
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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.