Home / 3,151.39-4,723.74-1,505.68

Finding the Fourth Proportional to 3,151.39, 4,723.74 and 1,505.68

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Solution

The fourth proportional to 3,151.39, 4,723.74 and 1,505.68 is: 2,256.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.39 : 4,723.74 = 1,505.68 : x
  2. Step 2: Convert to fraction form
    3,151.39/4,723.74 = 1,505.68/x
  3. Step 3: Cross multiply
    3,151.39x = 4,723.74 × 1,505.68
  4. Step 4: Simplify right side
    3,151.39x = 7,112,440.84
  5. Step 5: Solve for x
    x = 7,112,440.84/3,151.39
  6. Step 6: Final answer
    x = 2,256.92

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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.