Home / 7,040.28-9,716.04-4,056.78

Finding the Fourth Proportional to 7,040.28, 9,716.04 and 4,056.78

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Solution

The fourth proportional to 7,040.28, 9,716.04 and 4,056.78 is: 5,598.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.28 : 9,716.04 = 4,056.78 : x
  2. Step 2: Convert to fraction form
    7,040.28/9,716.04 = 4,056.78/x
  3. Step 3: Cross multiply
    7,040.28x = 9,716.04 × 4,056.78
  4. Step 4: Simplify right side
    7,040.28x = 39,415,836.75
  5. Step 5: Solve for x
    x = 39,415,836.75/7,040.28
  6. Step 6: Final answer
    x = 5,598.62

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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.