Home / 2,177.21-3,264.94-790.16

Finding the Fourth Proportional to 2,177.21, 3,264.94 and 790.16

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Solution

The fourth proportional to 2,177.21, 3,264.94 and 790.16 is: 1,184.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.21 : 3,264.94 = 790.16 : x
  2. Step 2: Convert to fraction form
    2,177.21/3,264.94 = 790.16/x
  3. Step 3: Cross multiply
    2,177.21x = 3,264.94 × 790.16
  4. Step 4: Simplify right side
    2,177.21x = 2,579,809.65
  5. Step 5: Solve for x
    x = 2,579,809.65/2,177.21
  6. Step 6: Final answer
    x = 1,184.91

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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.