Home / 7,675.40-11,509.32-2,480.60

Finding the Fourth Proportional to 7,675.40, 11,509.32 and 2,480.60

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Solution

The fourth proportional to 7,675.40, 11,509.32 and 2,480.60 is: 3,719.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.40 : 11,509.32 = 2,480.60 : x
  2. Step 2: Convert to fraction form
    7,675.40/11,509.32 = 2,480.60/x
  3. Step 3: Cross multiply
    7,675.40x = 11,509.32 × 2,480.60
  4. Step 4: Simplify right side
    7,675.40x = 28,550,019.19
  5. Step 5: Solve for x
    x = 28,550,019.19/7,675.40
  6. Step 6: Final answer
    x = 3,719.68

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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.