Home / 3,030.72-4,182.78-1,851.54

Finding the Fourth Proportional to 3,030.72, 4,182.78 and 1,851.54

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Solution

The fourth proportional to 3,030.72, 4,182.78 and 1,851.54 is: 2,555.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,030.72 : 4,182.78 = 1,851.54 : x
  2. Step 2: Convert to fraction form
    3,030.72/4,182.78 = 1,851.54/x
  3. Step 3: Cross multiply
    3,030.72x = 4,182.78 × 1,851.54
  4. Step 4: Simplify right side
    3,030.72x = 7,744,584.48
  5. Step 5: Solve for x
    x = 7,744,584.48/3,030.72
  6. Step 6: Final answer
    x = 2,555.36

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Half scale
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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.