Home / 3,430.89-4,734.34-1,938.93

Finding the Fourth Proportional to 3,430.89, 4,734.34 and 1,938.93

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Solution

The fourth proportional to 3,430.89, 4,734.34 and 1,938.93 is: 2,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.89 : 4,734.34 = 1,938.93 : x
  2. Step 2: Convert to fraction form
    3,430.89/4,734.34 = 1,938.93/x
  3. Step 3: Cross multiply
    3,430.89x = 4,734.34 × 1,938.93
  4. Step 4: Simplify right side
    3,430.89x = 9,179,553.86
  5. Step 5: Solve for x
    x = 9,179,553.86/3,430.89
  6. Step 6: Final answer
    x = 2,675.56

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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.