Home / 7,055.38-9,735.77-3,911.30

Finding the Fourth Proportional to 7,055.38, 9,735.77 and 3,911.30

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Solution

The fourth proportional to 7,055.38, 9,735.77 and 3,911.30 is: 5,397.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,055.38 : 9,735.77 = 3,911.30 : x
  2. Step 2: Convert to fraction form
    7,055.38/9,735.77 = 3,911.30/x
  3. Step 3: Cross multiply
    7,055.38x = 9,735.77 × 3,911.30
  4. Step 4: Simplify right side
    7,055.38x = 38,079,517.20
  5. Step 5: Solve for x
    x = 38,079,517.20/7,055.38
  6. Step 6: Final answer
    x = 5,397.23

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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.