Home / 3,254.90-4,491.47-1,928.39

Finding the Fourth Proportional to 3,254.90, 4,491.47 and 1,928.39

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Solution

The fourth proportional to 3,254.90, 4,491.47 and 1,928.39 is: 2,661.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,254.90 : 4,491.47 = 1,928.39 : x
  2. Step 2: Convert to fraction form
    3,254.90/4,491.47 = 1,928.39/x
  3. Step 3: Cross multiply
    3,254.90x = 4,491.47 × 1,928.39
  4. Step 4: Simplify right side
    3,254.90x = 8,661,288.20
  5. Step 5: Solve for x
    x = 8,661,288.20/3,254.90
  6. Step 6: Final answer
    x = 2,661.00

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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.