Home / 2,382.87-3,289.05-1,543.55

Finding the Fourth Proportional to 2,382.87, 3,289.05 and 1,543.55

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Solution

The fourth proportional to 2,382.87, 3,289.05 and 1,543.55 is: 2,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,382.87 : 3,289.05 = 1,543.55 : x
  2. Step 2: Convert to fraction form
    2,382.87/3,289.05 = 1,543.55/x
  3. Step 3: Cross multiply
    2,382.87x = 3,289.05 × 1,543.55
  4. Step 4: Simplify right side
    2,382.87x = 5,076,796.68
  5. Step 5: Solve for x
    x = 5,076,796.68/2,382.87
  6. Step 6: Final answer
    x = 2,130.54

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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.