Home / 3,180.16-4,385.12-2,185.92

Finding the Fourth Proportional to 3,180.16, 4,385.12 and 2,185.92

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Solution

The fourth proportional to 3,180.16, 4,385.12 and 2,185.92 is: 3,014.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.16 : 4,385.12 = 2,185.92 : x
  2. Step 2: Convert to fraction form
    3,180.16/4,385.12 = 2,185.92/x
  3. Step 3: Cross multiply
    3,180.16x = 4,385.12 × 2,185.92
  4. Step 4: Simplify right side
    3,180.16x = 9,585,521.51
  5. Step 5: Solve for x
    x = 9,585,521.51/3,180.16
  6. Step 6: Final answer
    x = 3,014.16

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1.5x scale

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.