Home / 2,231.40-3,347.77-750.45

Finding the Fourth Proportional to 2,231.40, 3,347.77 and 750.45

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Solution

The fourth proportional to 2,231.40, 3,347.77 and 750.45 is: 1,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,231.40 : 3,347.77 = 750.45 : x
  2. Step 2: Convert to fraction form
    2,231.40/3,347.77 = 750.45/x
  3. Step 3: Cross multiply
    2,231.40x = 3,347.77 × 750.45
  4. Step 4: Simplify right side
    2,231.40x = 2,512,315.38
  5. Step 5: Solve for x
    x = 2,512,315.38/2,231.40
  6. Step 6: Final answer
    x = 1,125.89

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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.