Home / 2,213.04-3,053.90-1,218.26

Finding the Fourth Proportional to 2,213.04, 3,053.90 and 1,218.26

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Solution

The fourth proportional to 2,213.04, 3,053.90 and 1,218.26 is: 1,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,213.04 : 3,053.90 = 1,218.26 : x
  2. Step 2: Convert to fraction form
    2,213.04/3,053.90 = 1,218.26/x
  3. Step 3: Cross multiply
    2,213.04x = 3,053.90 × 1,218.26
  4. Step 4: Simplify right side
    2,213.04x = 3,720,444.21
  5. Step 5: Solve for x
    x = 3,720,444.21/2,213.04
  6. Step 6: Final answer
    x = 1,681.15

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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.