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Finding the Fourth Proportional to 2,830.99, 4,246.07 and 751.12

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Solution

The fourth proportional to 2,830.99, 4,246.07 and 751.12 is: 1,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.99 : 4,246.07 = 751.12 : x
  2. Step 2: Convert to fraction form
    2,830.99/4,246.07 = 751.12/x
  3. Step 3: Cross multiply
    2,830.99x = 4,246.07 × 751.12
  4. Step 4: Simplify right side
    2,830.99x = 3,189,308.10
  5. Step 5: Solve for x
    x = 3,189,308.10/2,830.99
  6. Step 6: Final answer
    x = 1,126.57

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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.