Home / 7,228.40-10,839.90-5,030.60

Finding the Fourth Proportional to 7,228.40, 10,839.90 and 5,030.60

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Solution

The fourth proportional to 7,228.40, 10,839.90 and 5,030.60 is: 7,544.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,228.40 : 10,839.90 = 5,030.60 : x
  2. Step 2: Convert to fraction form
    7,228.40/10,839.90 = 5,030.60/x
  3. Step 3: Cross multiply
    7,228.40x = 10,839.90 × 5,030.60
  4. Step 4: Simplify right side
    7,228.40x = 54,531,200.94
  5. Step 5: Solve for x
    x = 54,531,200.94/7,228.40
  6. Step 6: Final answer
    x = 7,544.02

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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.