Home / 7,039.97-9,717.32-4,057.80

Finding the Fourth Proportional to 7,039.97, 9,717.32 and 4,057.80

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Solution

The fourth proportional to 7,039.97, 9,717.32 and 4,057.80 is: 5,601.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,039.97 : 9,717.32 = 4,057.80 : x
  2. Step 2: Convert to fraction form
    7,039.97/9,717.32 = 4,057.80/x
  3. Step 3: Cross multiply
    7,039.97x = 9,717.32 × 4,057.80
  4. Step 4: Simplify right side
    7,039.97x = 39,430,914.80
  5. Step 5: Solve for x
    x = 39,430,914.80/7,039.97
  6. Step 6: Final answer
    x = 5,601.01

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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.