Home / 4,928.40-7,390.17-1,806.12

Finding the Fourth Proportional to 4,928.40, 7,390.17 and 1,806.12

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Solution

The fourth proportional to 4,928.40, 7,390.17 and 1,806.12 is: 2,708.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.40 : 7,390.17 = 1,806.12 : x
  2. Step 2: Convert to fraction form
    4,928.40/7,390.17 = 1,806.12/x
  3. Step 3: Cross multiply
    4,928.40x = 7,390.17 × 1,806.12
  4. Step 4: Simplify right side
    4,928.40x = 13,347,533.84
  5. Step 5: Solve for x
    x = 13,347,533.84/4,928.40
  6. Step 6: Final answer
    x = 2,708.29

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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.