Home / 2,213.03-3,053.95-1,218.30

Finding the Fourth Proportional to 2,213.03, 3,053.95 and 1,218.30

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Solution

The fourth proportional to 2,213.03, 3,053.95 and 1,218.30 is: 1,681.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.03 : 3,053.95 = 1,218.30 : x
  2. Step 2: Convert to fraction form
    2,213.03/3,053.95 = 1,218.30/x
  3. Step 3: Cross multiply
    2,213.03x = 3,053.95 × 1,218.30
  4. Step 4: Simplify right side
    2,213.03x = 3,720,627.29
  5. Step 5: Solve for x
    x = 3,720,627.29/2,213.03
  6. Step 6: Final answer
    x = 1,681.24

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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.