Home / 7,709.28-10,639.32-4,350.90

Finding the Fourth Proportional to 7,709.28, 10,639.32 and 4,350.90

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Solution

The fourth proportional to 7,709.28, 10,639.32 and 4,350.90 is: 6,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.28 : 10,639.32 = 4,350.90 : x
  2. Step 2: Convert to fraction form
    7,709.28/10,639.32 = 4,350.90/x
  3. Step 3: Cross multiply
    7,709.28x = 10,639.32 × 4,350.90
  4. Step 4: Simplify right side
    7,709.28x = 46,290,617.39
  5. Step 5: Solve for x
    x = 46,290,617.39/7,709.28
  6. Step 6: Final answer
    x = 6,004.53

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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.