Home / 4,853.25-7,281.09-1,390.50

Finding the Fourth Proportional to 4,853.25, 7,281.09 and 1,390.50

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Solution

The fourth proportional to 4,853.25, 7,281.09 and 1,390.50 is: 2,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,853.25 : 7,281.09 = 1,390.50 : x
  2. Step 2: Convert to fraction form
    4,853.25/7,281.09 = 1,390.50/x
  3. Step 3: Cross multiply
    4,853.25x = 7,281.09 × 1,390.50
  4. Step 4: Simplify right side
    4,853.25x = 10,124,355.65
  5. Step 5: Solve for x
    x = 10,124,355.65/4,853.25
  6. Step 6: Final answer
    x = 2,086.10

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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.