Home / 3,720.23-5,133.88-2,041.61

Finding the Fourth Proportional to 3,720.23, 5,133.88 and 2,041.61

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Solution

The fourth proportional to 3,720.23, 5,133.88 and 2,041.61 is: 2,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.23 : 5,133.88 = 2,041.61 : x
  2. Step 2: Convert to fraction form
    3,720.23/5,133.88 = 2,041.61/x
  3. Step 3: Cross multiply
    3,720.23x = 5,133.88 × 2,041.61
  4. Step 4: Simplify right side
    3,720.23x = 10,481,357.63
  5. Step 5: Solve for x
    x = 10,481,357.63/3,720.23
  6. Step 6: Final answer
    x = 2,817.40

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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.