Home / 3,637.77-5,019.89-2,145.75

Finding the Fourth Proportional to 3,637.77, 5,019.89 and 2,145.75

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Solution

The fourth proportional to 3,637.77, 5,019.89 and 2,145.75 is: 2,961.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,637.77 : 5,019.89 = 2,145.75 : x
  2. Step 2: Convert to fraction form
    3,637.77/5,019.89 = 2,145.75/x
  3. Step 3: Cross multiply
    3,637.77x = 5,019.89 × 2,145.75
  4. Step 4: Simplify right side
    3,637.77x = 10,771,428.97
  5. Step 5: Solve for x
    x = 10,771,428.97/3,637.77
  6. Step 6: Final answer
    x = 2,961.00

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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.