Home / 3,225.51-4,451.11-1,900.12

Finding the Fourth Proportional to 3,225.51, 4,451.11 and 1,900.12

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Solution

The fourth proportional to 3,225.51, 4,451.11 and 1,900.12 is: 2,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,225.51 : 4,451.11 = 1,900.12 : x
  2. Step 2: Convert to fraction form
    3,225.51/4,451.11 = 1,900.12/x
  3. Step 3: Cross multiply
    3,225.51x = 4,451.11 × 1,900.12
  4. Step 4: Simplify right side
    3,225.51x = 8,457,643.13
  5. Step 5: Solve for x
    x = 8,457,643.13/3,225.51
  6. Step 6: Final answer
    x = 2,622.11

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Half scale
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Double 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.