Home / 4,928.40-7,390.49-1,807.38

Finding the Fourth Proportional to 4,928.40, 7,390.49 and 1,807.38

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Solution

The fourth proportional to 4,928.40, 7,390.49 and 1,807.38 is: 2,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,928.40 : 7,390.49 = 1,807.38 : x
  2. Step 2: Convert to fraction form
    4,928.40/7,390.49 = 1,807.38/x
  3. Step 3: Cross multiply
    4,928.40x = 7,390.49 × 1,807.38
  4. Step 4: Simplify right side
    4,928.40x = 13,357,414.78
  5. Step 5: Solve for x
    x = 13,357,414.78/4,928.40
  6. Step 6: Final answer
    x = 2,710.29

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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.