Home / 2,749.22-4,124.45-900.47

Finding the Fourth Proportional to 2,749.22, 4,124.45 and 900.47

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Solution

The fourth proportional to 2,749.22, 4,124.45 and 900.47 is: 1,350.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.22 : 4,124.45 = 900.47 : x
  2. Step 2: Convert to fraction form
    2,749.22/4,124.45 = 900.47/x
  3. Step 3: Cross multiply
    2,749.22x = 4,124.45 × 900.47
  4. Step 4: Simplify right side
    2,749.22x = 3,713,943.49
  5. Step 5: Solve for x
    x = 3,713,943.49/2,749.22
  6. Step 6: Final answer
    x = 1,350.91

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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.