Home / 3,039.80-4,194.93-1,642.55

Finding the Fourth Proportional to 3,039.80, 4,194.93 and 1,642.55

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Solution

The fourth proportional to 3,039.80, 4,194.93 and 1,642.55 is: 2,266.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.80 : 4,194.93 = 1,642.55 : x
  2. Step 2: Convert to fraction form
    3,039.80/4,194.93 = 1,642.55/x
  3. Step 3: Cross multiply
    3,039.80x = 4,194.93 × 1,642.55
  4. Step 4: Simplify right side
    3,039.80x = 6,890,381.81
  5. Step 5: Solve for x
    x = 6,890,381.81/3,039.80
  6. Step 6: Final answer
    x = 2,266.72

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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.