Home / 6,903.20-10,365.60-3,987.20

Finding the Fourth Proportional to 6,903.20, 10,365.60 and 3,987.20

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Solution

The fourth proportional to 6,903.20, 10,365.60 and 3,987.20 is: 5,987.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,903.20 : 10,365.60 = 3,987.20 : x
  2. Step 2: Convert to fraction form
    6,903.20/10,365.60 = 3,987.20/x
  3. Step 3: Cross multiply
    6,903.20x = 10,365.60 × 3,987.20
  4. Step 4: Simplify right side
    6,903.20x = 41,329,720.32
  5. Step 5: Solve for x
    x = 41,329,720.32/6,903.20
  6. Step 6: Final answer
    x = 5,987.04

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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.