Home / 3,134.19-4,323.78-1,807.62

Finding the Fourth Proportional to 3,134.19, 4,323.78 and 1,807.62

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Solution

The fourth proportional to 3,134.19, 4,323.78 and 1,807.62 is: 2,493.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.19 : 4,323.78 = 1,807.62 : x
  2. Step 2: Convert to fraction form
    3,134.19/4,323.78 = 1,807.62/x
  3. Step 3: Cross multiply
    3,134.19x = 4,323.78 × 1,807.62
  4. Step 4: Simplify right side
    3,134.19x = 7,815,734.99
  5. Step 5: Solve for x
    x = 7,815,734.99/3,134.19
  6. Step 6: Final answer
    x = 2,493.70

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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.