Home / 3,039.63-4,195.60-1,780.95

Finding the Fourth Proportional to 3,039.63, 4,195.60 and 1,780.95

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Solution

The fourth proportional to 3,039.63, 4,195.60 and 1,780.95 is: 2,458.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.63 : 4,195.60 = 1,780.95 : x
  2. Step 2: Convert to fraction form
    3,039.63/4,195.60 = 1,780.95/x
  3. Step 3: Cross multiply
    3,039.63x = 4,195.60 × 1,780.95
  4. Step 4: Simplify right side
    3,039.63x = 7,472,165.10
  5. Step 5: Solve for x
    x = 7,472,165.10/3,039.63
  6. Step 6: Final answer
    x = 2,458.25

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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.