Home / 2,177.65-3,267.27-716.80

Finding the Fourth Proportional to 2,177.65, 3,267.27 and 716.80

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Solution

The fourth proportional to 2,177.65, 3,267.27 and 716.80 is: 1,075.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.65 : 3,267.27 = 716.80 : x
  2. Step 2: Convert to fraction form
    2,177.65/3,267.27 = 716.80/x
  3. Step 3: Cross multiply
    2,177.65x = 3,267.27 × 716.80
  4. Step 4: Simplify right side
    2,177.65x = 2,341,979.14
  5. Step 5: Solve for x
    x = 2,341,979.14/2,177.65
  6. Step 6: Final answer
    x = 1,075.46

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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.