Home / 3,160.13-4,740.20-1,185.68

Finding the Fourth Proportional to 3,160.13, 4,740.20 and 1,185.68

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Solution

The fourth proportional to 3,160.13, 4,740.20 and 1,185.68 is: 1,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.13 : 4,740.20 = 1,185.68 : x
  2. Step 2: Convert to fraction form
    3,160.13/4,740.20 = 1,185.68/x
  3. Step 3: Cross multiply
    3,160.13x = 4,740.20 × 1,185.68
  4. Step 4: Simplify right side
    3,160.13x = 5,620,330.71
  5. Step 5: Solve for x
    x = 5,620,330.71/3,160.13
  6. Step 6: Final answer
    x = 1,778.52

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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.