Home / 3,720.31-5,127.36-3,055.03

Finding the Fourth Proportional to 3,720.31, 5,127.36 and 3,055.03

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Solution

The fourth proportional to 3,720.31, 5,127.36 and 3,055.03 is: 4,210.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.31 : 5,127.36 = 3,055.03 : x
  2. Step 2: Convert to fraction form
    3,720.31/5,127.36 = 3,055.03/x
  3. Step 3: Cross multiply
    3,720.31x = 5,127.36 × 3,055.03
  4. Step 4: Simplify right side
    3,720.31x = 15,664,238.62
  5. Step 5: Solve for x
    x = 15,664,238.62/3,720.31
  6. Step 6: Final answer
    x = 4,210.47

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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.