Home / 3,160.16-4,740.80-1,080.38

Finding the Fourth Proportional to 3,160.16, 4,740.80 and 1,080.38

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Solution

The fourth proportional to 3,160.16, 4,740.80 and 1,080.38 is: 1,620.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.16 : 4,740.80 = 1,080.38 : x
  2. Step 2: Convert to fraction form
    3,160.16/4,740.80 = 1,080.38/x
  3. Step 3: Cross multiply
    3,160.16x = 4,740.80 × 1,080.38
  4. Step 4: Simplify right side
    3,160.16x = 5,121,865.50
  5. Step 5: Solve for x
    x = 5,121,865.50/3,160.16
  6. Step 6: Final answer
    x = 1,620.76

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1.5x scale

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.