Home / 3,189.48-4,785.15-1,957.68

Finding the Fourth Proportional to 3,189.48, 4,785.15 and 1,957.68

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Solution

The fourth proportional to 3,189.48, 4,785.15 and 1,957.68 is: 2,937.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,189.48 : 4,785.15 = 1,957.68 : x
  2. Step 2: Convert to fraction form
    3,189.48/4,785.15 = 1,957.68/x
  3. Step 3: Cross multiply
    3,189.48x = 4,785.15 × 1,957.68
  4. Step 4: Simplify right side
    3,189.48x = 9,367,792.45
  5. Step 5: Solve for x
    x = 9,367,792.45/3,189.48
  6. Step 6: Final answer
    x = 2,937.09

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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.