Home / 3,151.38-4,728.12-1,303.38

Finding the Fourth Proportional to 3,151.38, 4,728.12 and 1,303.38

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Solution

The fourth proportional to 3,151.38, 4,728.12 and 1,303.38 is: 1,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.38 : 4,728.12 = 1,303.38 : x
  2. Step 2: Convert to fraction form
    3,151.38/4,728.12 = 1,303.38/x
  3. Step 3: Cross multiply
    3,151.38x = 4,728.12 × 1,303.38
  4. Step 4: Simplify right side
    3,151.38x = 6,162,537.05
  5. Step 5: Solve for x
    x = 6,162,537.05/3,151.38
  6. Step 6: Final answer
    x = 1,955.50

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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.