Home / 5,280.74-7,287.78-2,923.03

Finding the Fourth Proportional to 5,280.74, 7,287.78 and 2,923.03

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Solution

The fourth proportional to 5,280.74, 7,287.78 and 2,923.03 is: 4,033.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.74 : 7,287.78 = 2,923.03 : x
  2. Step 2: Convert to fraction form
    5,280.74/7,287.78 = 2,923.03/x
  3. Step 3: Cross multiply
    5,280.74x = 7,287.78 × 2,923.03
  4. Step 4: Simplify right side
    5,280.74x = 21,302,363.13
  5. Step 5: Solve for x
    x = 21,302,363.13/5,280.74
  6. Step 6: Final answer
    x = 4,033.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.