Home / 3,430.73-4,734.78-1,938.98

Finding the Fourth Proportional to 3,430.73, 4,734.78 and 1,938.98

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Solution

The fourth proportional to 3,430.73, 4,734.78 and 1,938.98 is: 2,676.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.73 : 4,734.78 = 1,938.98 : x
  2. Step 2: Convert to fraction form
    3,430.73/4,734.78 = 1,938.98/x
  3. Step 3: Cross multiply
    3,430.73x = 4,734.78 × 1,938.98
  4. Step 4: Simplify right side
    3,430.73x = 9,180,643.72
  5. Step 5: Solve for x
    x = 9,180,643.72/3,430.73
  6. Step 6: Final answer
    x = 2,676.00

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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.