Home / 3,720.05-5,133.29-2,148.65

Finding the Fourth Proportional to 3,720.05, 5,133.29 and 2,148.65

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Solution

The fourth proportional to 3,720.05, 5,133.29 and 2,148.65 is: 2,964.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.05 : 5,133.29 = 2,148.65 : x
  2. Step 2: Convert to fraction form
    3,720.05/5,133.29 = 2,148.65/x
  3. Step 3: Cross multiply
    3,720.05x = 5,133.29 × 2,148.65
  4. Step 4: Simplify right side
    3,720.05x = 11,029,643.56
  5. Step 5: Solve for x
    x = 11,029,643.56/3,720.05
  6. Step 6: Final answer
    x = 2,964.92

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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.