Home / 4,143.18-6,213.90-1,221.51

Finding the Fourth Proportional to 4,143.18, 6,213.90 and 1,221.51

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Solution

The fourth proportional to 4,143.18, 6,213.90 and 1,221.51 is: 1,832.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,143.18 : 6,213.90 = 1,221.51 : x
  2. Step 2: Convert to fraction form
    4,143.18/6,213.90 = 1,221.51/x
  3. Step 3: Cross multiply
    4,143.18x = 6,213.90 × 1,221.51
  4. Step 4: Simplify right side
    4,143.18x = 7,590,340.99
  5. Step 5: Solve for x
    x = 7,590,340.99/4,143.18
  6. Step 6: Final answer
    x = 1,832.01

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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.