Home / 3,938.25-5,434.65-2,259.63

Finding the Fourth Proportional to 3,938.25, 5,434.65 and 2,259.63

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Solution

The fourth proportional to 3,938.25, 5,434.65 and 2,259.63 is: 3,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938.25 : 5,434.65 = 2,259.63 : x
  2. Step 2: Convert to fraction form
    3,938.25/5,434.65 = 2,259.63/x
  3. Step 3: Cross multiply
    3,938.25x = 5,434.65 × 2,259.63
  4. Step 4: Simplify right side
    3,938.25x = 12,280,296.46
  5. Step 5: Solve for x
    x = 12,280,296.46/3,938.25
  6. Step 6: Final answer
    x = 3,118.21

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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.