Home / 3,292.32-4,543.47-1,965.78

Finding the Fourth Proportional to 3,292.32, 4,543.47 and 1,965.78

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Solution

The fourth proportional to 3,292.32, 4,543.47 and 1,965.78 is: 2,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292.32 : 4,543.47 = 1,965.78 : x
  2. Step 2: Convert to fraction form
    3,292.32/4,543.47 = 1,965.78/x
  3. Step 3: Cross multiply
    3,292.32x = 4,543.47 × 1,965.78
  4. Step 4: Simplify right side
    3,292.32x = 8,931,439.74
  5. Step 5: Solve for x
    x = 8,931,439.74/3,292.32
  6. Step 6: Final answer
    x = 2,712.81

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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.