Home / 2,830.13-4,245.41-750.13

Finding the Fourth Proportional to 2,830.13, 4,245.41 and 750.13

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Solution

The fourth proportional to 2,830.13, 4,245.41 and 750.13 is: 1,125.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,830.13 : 4,245.41 = 750.13 : x
  2. Step 2: Convert to fraction form
    2,830.13/4,245.41 = 750.13/x
  3. Step 3: Cross multiply
    2,830.13x = 4,245.41 × 750.13
  4. Step 4: Simplify right side
    2,830.13x = 3,184,600.67
  5. Step 5: Solve for x
    x = 3,184,600.67/2,830.13
  6. Step 6: Final answer
    x = 1,125.25

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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.