Home / 5,101.20-7,651.80-4,323.60

Finding the Fourth Proportional to 5,101.20, 7,651.80 and 4,323.60

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Solution

The fourth proportional to 5,101.20, 7,651.80 and 4,323.60 is: 6,485.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,101.20 : 7,651.80 = 4,323.60 : x
  2. Step 2: Convert to fraction form
    5,101.20/7,651.80 = 4,323.60/x
  3. Step 3: Cross multiply
    5,101.20x = 7,651.80 × 4,323.60
  4. Step 4: Simplify right side
    5,101.20x = 33,083,322.48
  5. Step 5: Solve for x
    x = 33,083,322.48/5,101.20
  6. Step 6: Final answer
    x = 6,485.40

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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.