Home / 5,250.80-7,876.08-1,355.36

Finding the Fourth Proportional to 5,250.80, 7,876.08 and 1,355.36

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Solution

The fourth proportional to 5,250.80, 7,876.08 and 1,355.36 is: 2,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.80 : 7,876.08 = 1,355.36 : x
  2. Step 2: Convert to fraction form
    5,250.80/7,876.08 = 1,355.36/x
  3. Step 3: Cross multiply
    5,250.80x = 7,876.08 × 1,355.36
  4. Step 4: Simplify right side
    5,250.80x = 10,674,923.79
  5. Step 5: Solve for x
    x = 10,674,923.79/5,250.80
  6. Step 6: Final answer
    x = 2,033.01

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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.