Home / 3,903.35-5,387.69-2,225.63

Finding the Fourth Proportional to 3,903.35, 5,387.69 and 2,225.63

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Solution

The fourth proportional to 3,903.35, 5,387.69 and 2,225.63 is: 3,071.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.35 : 5,387.69 = 2,225.63 : x
  2. Step 2: Convert to fraction form
    3,903.35/5,387.69 = 2,225.63/x
  3. Step 3: Cross multiply
    3,903.35x = 5,387.69 × 2,225.63
  4. Step 4: Simplify right side
    3,903.35x = 11,991,004.49
  5. Step 5: Solve for x
    x = 11,991,004.49/3,903.35
  6. Step 6: Final answer
    x = 3,071.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.