Home / 3,681.03-5,080.47-2,189.01

Finding the Fourth Proportional to 3,681.03, 5,080.47 and 2,189.01

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Solution

The fourth proportional to 3,681.03, 5,080.47 and 2,189.01 is: 3,021.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,681.03 : 5,080.47 = 2,189.01 : x
  2. Step 2: Convert to fraction form
    3,681.03/5,080.47 = 2,189.01/x
  3. Step 3: Cross multiply
    3,681.03x = 5,080.47 × 2,189.01
  4. Step 4: Simplify right side
    3,681.03x = 11,121,199.63
  5. Step 5: Solve for x
    x = 11,121,199.63/3,681.03
  6. Step 6: Final answer
    x = 3,021.22

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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.