Home / 3,715.80-5,571.88-1,407.48

Finding the Fourth Proportional to 3,715.80, 5,571.88 and 1,407.48

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Solution

The fourth proportional to 3,715.80, 5,571.88 and 1,407.48 is: 2,110.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,715.80 : 5,571.88 = 1,407.48 : x
  2. Step 2: Convert to fraction form
    3,715.80/5,571.88 = 1,407.48/x
  3. Step 3: Cross multiply
    3,715.80x = 5,571.88 × 1,407.48
  4. Step 4: Simplify right side
    3,715.80x = 7,842,309.66
  5. Step 5: Solve for x
    x = 7,842,309.66/3,715.80
  6. Step 6: Final answer
    x = 2,110.53

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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.