Home / 6,103.80-9,131.40-5,291.10

Finding the Fourth Proportional to 6,103.80, 9,131.40 and 5,291.10

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Solution

The fourth proportional to 6,103.80, 9,131.40 and 5,291.10 is: 7,915.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,103.80 : 9,131.40 = 5,291.10 : x
  2. Step 2: Convert to fraction form
    6,103.80/9,131.40 = 5,291.10/x
  3. Step 3: Cross multiply
    6,103.80x = 9,131.40 × 5,291.10
  4. Step 4: Simplify right side
    6,103.80x = 48,315,150.54
  5. Step 5: Solve for x
    x = 48,315,150.54/6,103.80
  6. Step 6: Final answer
    x = 7,915.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.