Home / 2,213.22-3,320.51-1,240.01

Finding the Fourth Proportional to 2,213.22, 3,320.51 and 1,240.01

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Solution

The fourth proportional to 2,213.22, 3,320.51 and 1,240.01 is: 1,860.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.22 : 3,320.51 = 1,240.01 : x
  2. Step 2: Convert to fraction form
    2,213.22/3,320.51 = 1,240.01/x
  3. Step 3: Cross multiply
    2,213.22x = 3,320.51 × 1,240.01
  4. Step 4: Simplify right side
    2,213.22x = 4,117,465.61
  5. Step 5: Solve for x
    x = 4,117,465.61/2,213.22
  6. Step 6: Final answer
    x = 1,860.40

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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.