Home / 3,187.45-4,784.21-1,957.26

Finding the Fourth Proportional to 3,187.45, 4,784.21 and 1,957.26

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Solution

The fourth proportional to 3,187.45, 4,784.21 and 1,957.26 is: 2,937.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.45 : 4,784.21 = 1,957.26 : x
  2. Step 2: Convert to fraction form
    3,187.45/4,784.21 = 1,957.26/x
  3. Step 3: Cross multiply
    3,187.45x = 4,784.21 × 1,957.26
  4. Step 4: Simplify right side
    3,187.45x = 9,363,942.86
  5. Step 5: Solve for x
    x = 9,363,942.86/3,187.45
  6. Step 6: Final answer
    x = 2,937.76

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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.