Home / 7,210.21-10,815.32-3,924.85

Finding the Fourth Proportional to 7,210.21, 10,815.32 and 3,924.85

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Solution

The fourth proportional to 7,210.21, 10,815.32 and 3,924.85 is: 5,887.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.21 : 10,815.32 = 3,924.85 : x
  2. Step 2: Convert to fraction form
    7,210.21/10,815.32 = 3,924.85/x
  3. Step 3: Cross multiply
    7,210.21x = 10,815.32 × 3,924.85
  4. Step 4: Simplify right side
    7,210.21x = 42,448,508.70
  5. Step 5: Solve for x
    x = 42,448,508.70/7,210.21
  6. Step 6: Final answer
    x = 5,887.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.