Home / 6,928.20-10,386.12-3,030.48

Finding the Fourth Proportional to 6,928.20, 10,386.12 and 3,030.48

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Solution

The fourth proportional to 6,928.20, 10,386.12 and 3,030.48 is: 4,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,928.20 : 10,386.12 = 3,030.48 : x
  2. Step 2: Convert to fraction form
    6,928.20/10,386.12 = 3,030.48/x
  3. Step 3: Cross multiply
    6,928.20x = 10,386.12 × 3,030.48
  4. Step 4: Simplify right side
    6,928.20x = 31,474,928.94
  5. Step 5: Solve for x
    x = 31,474,928.94/6,928.20
  6. Step 6: Final answer
    x = 4,543.02

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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.