Home / 3,151.82-4,728.90-1,303.10

Finding the Fourth Proportional to 3,151.82, 4,728.90 and 1,303.10

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Solution

The fourth proportional to 3,151.82, 4,728.90 and 1,303.10 is: 1,955.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.82 : 4,728.90 = 1,303.10 : x
  2. Step 2: Convert to fraction form
    3,151.82/4,728.90 = 1,303.10/x
  3. Step 3: Cross multiply
    3,151.82x = 4,728.90 × 1,303.10
  4. Step 4: Simplify right side
    3,151.82x = 6,162,229.59
  5. Step 5: Solve for x
    x = 6,162,229.59/3,151.82
  6. Step 6: Final answer
    x = 1,955.13

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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.