Home / 3,938.19-5,434.20-2,259.67

Finding the Fourth Proportional to 3,938.19, 5,434.20 and 2,259.67

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Solution

The fourth proportional to 3,938.19, 5,434.20 and 2,259.67 is: 3,118.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.19 : 5,434.20 = 2,259.67 : x
  2. Step 2: Convert to fraction form
    3,938.19/5,434.20 = 2,259.67/x
  3. Step 3: Cross multiply
    3,938.19x = 5,434.20 × 2,259.67
  4. Step 4: Simplify right side
    3,938.19x = 12,279,485.13
  5. Step 5: Solve for x
    x = 12,279,485.13/3,938.19
  6. Step 6: Final answer
    x = 3,118.05

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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.