Home / 3,432.45-4,734.66-2,991.40

Finding the Fourth Proportional to 3,432.45, 4,734.66 and 2,991.40

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Solution

The fourth proportional to 3,432.45, 4,734.66 and 2,991.40 is: 4,126.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.45 : 4,734.66 = 2,991.40 : x
  2. Step 2: Convert to fraction form
    3,432.45/4,734.66 = 2,991.40/x
  3. Step 3: Cross multiply
    3,432.45x = 4,734.66 × 2,991.40
  4. Step 4: Simplify right side
    3,432.45x = 14,163,261.92
  5. Step 5: Solve for x
    x = 14,163,261.92/3,432.45
  6. Step 6: Final answer
    x = 4,126.28

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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.