Home / 7,210.30-10,811.08-3,508.80

Finding the Fourth Proportional to 7,210.30, 10,811.08 and 3,508.80

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Solution

The fourth proportional to 7,210.30, 10,811.08 and 3,508.80 is: 5,261.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,210.30 : 10,811.08 = 3,508.80 : x
  2. Step 2: Convert to fraction form
    7,210.30/10,811.08 = 3,508.80/x
  3. Step 3: Cross multiply
    7,210.30x = 10,811.08 × 3,508.80
  4. Step 4: Simplify right side
    7,210.30x = 37,933,917.50
  5. Step 5: Solve for x
    x = 37,933,917.50/7,210.30
  6. Step 6: Final answer
    x = 5,261.07

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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.