Home / 2,213.80-3,316.65-1,347.10

Finding the Fourth Proportional to 2,213.80, 3,316.65 and 1,347.10

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Solution

The fourth proportional to 2,213.80, 3,316.65 and 1,347.10 is: 2,018.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.80 : 3,316.65 = 1,347.10 : x
  2. Step 2: Convert to fraction form
    2,213.80/3,316.65 = 1,347.10/x
  3. Step 3: Cross multiply
    2,213.80x = 3,316.65 × 1,347.10
  4. Step 4: Simplify right side
    2,213.80x = 4,467,859.22
  5. Step 5: Solve for x
    x = 4,467,859.22/2,213.80
  6. Step 6: Final answer
    x = 2,018.19

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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.